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Air Purifying Plants

Air Purifying Plants

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Air Purifying Plants

  1. 1. Air Purifying Plants Use of Plants to Purify Indoor Air
  2. 2. Introduction • In offices, homes, and other indoor areas, poor air quality can both cause health problems and make existing health problems worse. • The U.S. Environmental Protection Agency (USEPA) currently ranks indoor air pollution as one of the top five threats to public health.
  3. 3. Indoor Air Pollution
  4. 4. Introduction • Indoor air pollution results from the release of chemical vapors and the suspension in the air of particulates such as dust and microorganisms. • In response to increasing Energy costs and the need to conserve energy resources, buildings and homes have been designed to be more energy efficient. Thus, many offices and new homes have tighter construction, sealing the building from the outside air. This makes it easier for indoor air pollutants to accumulate to dangerous levels. With people spending up to 70–90 percent of their time indoors, long-term Exposure to indoor air Pollution can cause various health problems.
  5. 5. Introduction
  6. 6. Introduction • Air pollution can build up in any confined space, but gases from synthetic materials used these days to construct or furnish offices and homes can, among other factors, result in “sick building syndrome.” • People who are hypersensitive to the pollutants can develop serious symptoms including eye, nose, and throat irritations, allergies, asthma, blurred vision, dizziness, fatigue, headache, skin irritation, nervous System disorders, and upper respiratory and sinus congestion.
  7. 7. Sick Building Syndrome
  8. 8. Sources of emissions of air pollutants • The major sources of indoor air pollutants are combustion by products, Building materials, household products and chemicals, and bio- effluents. • Combustion by products include carbon monoxide, nitrogen and sulfur dioxides, formaldehyde. • Combustion by-products Are produced by gas ranges, cook tops, water heaters, clothes dryers, smokers, and internal combustion engines turned on in enclosed spaces.
  9. 9. Sick Building Syndrome
  10. 10. Introduction • Household products and chemicals that cause indoor air pollution include furniture waxes, paint strippers, adhesives, cleaning products, disinfectants, degreasers, and cosmetics. Some of these products release chemicals into the air during use, whereas others emit chemicals as they age, dry, or cure; this is known as out-gassing.
  11. 11. Sick Building Syndrome
  12. 12. Ways to Improve Indoor Air Quality • There are various ways to reduce indoor air pollution and improve air quality. Increasing ventilation and air exchange with the outside will help prevent the accumulation or reduce the amount of air pollutants indoors. • Exhaust fans can be Installed in the kitchen and bathrooms, and air filters such as high- efficiency particulate air filters, which have a carbon filter component, can be used.
  13. 13. Ways to Improve Indoor Air Quality
  14. 14. Ways to Improve Indoor Air Quality • Combustion appliances should be vented directly to the outside and regularly inspected, cleaned, and maintained. • A by product of propane gas combustion is carbon monoxide. The house should be well ventilated when cooking or heating with propane.
  15. 15. Ways to Improve Indoor Air Quality
  16. 16. Ways to Improve Indoor Air Quality • Use only wood products that are formaldehyde-free or have low formaldehyde emissions. Seal the surfaces of wood products with surface finishes that are water-based. • Select low-emission building products and carpets. Avoid household products that have hazardous vapors, and do not store hazardous products in the home.
  17. 17. Ways to Improve Indoor Air Quality
  18. 18. House Plants help Clean Indoor Air • While developing technologies that allow humans to live in closed environments such as the International Space Station, NASA discovered that plants help reduce volatile organic chemicals/compounds (VOCs) and can be an efficient way to filter the air in living compartments.
  19. 19. House Plants help Clean Indoor Air
  20. 20. House Plants help Clean Indoor Air • The Plants for Clean Air Council and wolverton Environmental Services have tested different houseplants for their ability to remove various toxic gases such as formaldehyde, xylene/toluene, and ammonia. • Plants absorb volatile organic compounds from the air into their leaves and then translocate them to their root zone, where microbes break them down. Microorganisms in the soil can use trace amounts of pollutants as a food source. • Some organic chemicals absorbed by plants from the air are destroyed by the plant’s own biological processes.
  21. 21. House Plants help Clean Indoor Air
  22. 22. House Plants help Clean Indoor Air
  23. 23. House Plants help Clean Indoor Air • Plants add aesthetic and biological comfort to interior paces. When plants are added to rooms, relative humidity can increase and particulate matter (dust) accumulation can decrease. Increasing relative humidity has a relaxing effect on people, and removing dust aids by reducing potentially allergy-inducing particles. • Reducing particulate matter in a room may also be beneficial to computers and other electronic equipment by limiting the amount of dust collecting on circuit boards and clogging.
  24. 24. House Plants help Clean Indoor Air
  25. 25. House Plants help Clean Indoor Air • During photosynthesis, carbon dioxide is taken in through plant foliage, and oxygen is produced and released by The Plant as a by product. • At night or when no photosynthesis is taking place, plants, like people, respire and Give off carbon dioxide. • Volatile photochemical released by plant leaves appear to be important in controlling airborne microbes and mold spores in surrounding air.
  26. 26. House Plants help Clean Indoor Air
  27. 27. House Plants help Clean Indoor Air • Plants release water vapor via transpiration through the leaves and into the air, raising humidity. • High transpiration rates create convection currents that cause toxin-laden air to be pulled down into the soil around the roots, where microbes in the soil break down the gases into a source of food and energy. Air also moves into and out of leaf stomata (pore-like openings).
  28. 28. How Houseplants Help Clean Indoor Air
  29. 29. NASA List Of Best Air-Cleaning Plants • NASA did a Clean Air Study, that found which plants are effective at removing benzene, formaldehyde, trichloroethylene, xylene, and ammonia from the air – chemicals that have been linked to negative health effects like headaches, dizziness, eye irritation, and others. • Dr. B. C. Wolverton led the study about 27 years ago and although this research is quite old, it is still regarded by many as the most comprehensive and accurate to date.
  30. 30. Dr. Wolverton, NASA
  31. 31. Pollutants in Indoor Air
  32. 32. Effects on Humans
  33. 33. Common Air Filtering Plants
  34. 34. Common Air Filtering Plants
  35. 35. Common Air Filtering Plants
  36. 36. Common Air Filtering Plants
  37. 37. The Air Cleaning Experiments • Most people have heard at some point that house plants are good for your health because they can clean, filter and purify the air of various toxins and pollutants. • A lot of people know that this has been proved by science, although most people don't know about the actual studies or which plants are best for the job.
  38. 38. The Air Cleaning Experiments
  39. 39. The Air Cleaning Experiments • The National Aeronautics and Space Administration (NASA) began to think about future life-support systems so humans could live on the moon and other planets that the ability of plants to filter and purify the air was exposed in full detail.
  40. 40. The Air Cleaning Experiments
  41. 41. The Air Cleaning Experiments • NASA proposed that if humans travelled to inhospitable planets then small biospheres would need to exist in order to support them, much like a spacecraft provides a suitable environment for its passengers as they travel through space. • The issue however was that at the time spacecrafts could only be used for short periods due to the quick build up volatile organic chemicals, coming both from the people themselves as well as various equipment and machinery used on the craft.
  42. 42. The Air Cleaning Experiments
  43. 43. The Air Cleaning Experiments • Between 1980 and 1984 NASA proved plants in sealed test chambers that were exposed to volatile organic chemicals could remove them from the air. Including formaldehyde which is found in, or used to produce, a multitude of everyday products, from fabrics and furniture to tobacco smoke and gas stoves. • In 1984 people were very excited by NASA's findings and as a result they funded significant research looking at house plants and their air purifying abilities.
  44. 44. The Air Cleaning Experiments
  45. 45. The Air Cleaning Experiments • Dr Bill Wolverton was one of the scientists brought on board to help research and study the effects of houseplants on air quality in contained spaces and produced some of the most popular and commonly referenced research papers about the topic.
  46. 46. The Air Cleaning Experiments
  47. 47. The List of 50 Plants • The list is ranked in order of plant effectiveness in a typical home according to Dr Wolverton. So the 1st plant in the list (Areca Palm) is the most effective and the 50th (Kalanchoe) is the least
  48. 48. The Areca Palm The Areca Palm • The Areca Palm or Butterfly Palm is a relatively easy care indoor houseplant that has much going for it. Its attractive nature has been awarded the Royal Horticultural Society's Award of Garden Merit, which for a plant grown more commonly indoors than out, is a pretty rare feat.
  49. 49. The Areca Palm • The Areca Palm took first place among 50 plants that were tested for their ability to filter the air around scoring highly in all categories meaning it was ranked the best houseplant at cleaning the air in homes and offices
  50. 50. The Areca Palm • Benefits: It is known for being one of the better performers in purifying the air.
  51. 51. The Areca Palm
  52. 52. Lady Palm (Rhapis Excelsa) • The lady palm, or Rhapis excelsa, is a small fan palm that can do exceedingly well indoors under the right conditions. • The lady palm, sometimes called the bamboo palm or miniature fan palm, is the best suited of all the fan palms to indoor cultivation.
  53. 53. Lady Palm (Rhapis Excelsa) • Bamboo Palm is a useful indoor palm because its adaptability to the environment, exotic look and anti-pollutant abilities. • It is very common in malls, offices, homes and courtyards. The slow-growing, small palms are ideal for shaded borders and as indoor potted plants. The bamboo palm provides attractive foliage for outdoor beds and borders.
  54. 54. Lady Palm (Rhapis Excelsa)
  55. 55. Lady Palm (Rhapis Excelsa) • Benefits: According to NASA, it removes formaldehyde (carcinogen, cancer-causing substance associated with most chemicals, plastics, cigarettes and off-gasing) and is also said to act as a natural humidifier.
  56. 56. The Rubber Tree Plant • The Rubber Plant could be the houseplant for you if you want a tough plant which can reach staggering heights within a few years. While its size can still be tamed some what, you have to keep in mind it will eventually require a certain amount of space.
  57. 57. The Rubber Tree Plant
  58. 58. The Rubber Tree Plant • Rubber Plant as one of the very best houseplants to clean the air. • It also scores really well with resistance to pests and diseases and has a high transpiration rate which increases the humidity of the room it lives in.
  59. 59. The Rubber Tree Plant
  60. 60. The Rubber Tree Plant • While rubber plants (Ficus robusta) are grown as easy-care houseplants, they also improve indoor air quality, according to studies conducted by NASA. Their large leaves can absorb airborne chemicals and break them down, rendering them harmless. • They absorb exhaled carbon dioxide and convert it to breathable oxygen. Rubber plants also eliminate bacteria and mold spores in the air.
  61. 61. Dracaena Janet Craig • Janet Craig is one of the most popular Draceanas used indoors, likely due to it’s ability to grow in low light and tolerate considerable dryness.
  62. 62. Dracaena Janet Craig
  63. 63. Dracaena Janet Craig • Dracaenas are one of the plants used in the NASA Clean Air Study and has shown to help remove Formaldehyde.
  64. 64. Dracaena Janet Craig • The Dracaena (or Dracaena deremensis) places fifth on NASA’s ranking. According to data it can remove Formaldehyde, at a rate of 1,328 micrograms per hour. It also removes Xylene.
  65. 65. English Ivy • English Ivy or Hendera Helix (which comes from Ancient Greek meaning "twist or "turn") is a very easy house plant to grow indeed, English Ivy is also one of the top plants to filter the air in your home or office. • It's likely to be one of the best plants to choose if you want something which clambers over various surfaces and can quickly cover bare surroundings without any help. • It also looks good in a hanging basket and can be trained up a moss stick with minimal fuss making it a versatile plant.
  66. 66. English Ivy
  67. 67. English Ivy • English ivy plant provide a solution for allergic reactions” sixty percent of air based mold within the space can be removed after just six hrs right after English ivy had been introduced. • People that have allergies, asthma, or even the desire to inhale cleaner, more fresh air might be wise to get English ivy plant.
  68. 68. English Ivy
  69. 69. Ficus "Alii" (Ficus macleilandii) Ficus Alii (Ficus maclellandii “Alii”) • With its ability to help purify the air, ease of growth, and resistance to pests, this large, attractive plant is an excellent choice for the home or office.
  70. 70. Ficus "Alii" (Ficus macleilandii)
  71. 71. Boston Fern • The Boston Fern is one of many ferns that is suitable for indoor use as a houseplant. "Boston Fern" which was introduced in 1894, are much more popular due to their adaptability to warmer homes
  72. 72. Boston Fern
  73. 73. Boston Fern • It's also one of the top rated plants for removing air pollutants from the air and because of its almost insatiable appetite for water it pumps out large amounts of water vapor into the nearby air, thereby increasing humidity.
  74. 74. Peace Lily • The NASA study focuses on common air pollutants that tend to be given off by manmade materials. These are chemicals that become trapped in the air in enclosed spaces and can be bad for your health if breathed in too much. • One of these chemicals is Benzene, which can be naturally given off by gasoline, paint, rubber, tobacco smoke, detergent, and a variety of synthetic fibers. • Another is Trichloroethylene, which can be found in paint, lacquer, glue, and varnish. In other words, it’s commonly given off by furniture.
  75. 75. Peace Lily • Peace lilies have been found to be very good at removing these two chemicals from the air. They absorb the pollutants from the air through their leaves, then send them to their roots, where they’re broken down by microbes in the soil. So this makes using peace lily plants for air purification in the home a definite plus.
  76. 76. Peace Lily
  77. 77. The Yellow Corn Plant The Yellow Corn Plant • This very popular houseplant often goes by the name Corn Plant, or by its official Latin name of Dracaena fragrans. it may also be known as Dracaena massangeana. • Corn Plant shows shiny good looking leaves and removal various indoor air toxins.
  78. 78. The Yellow Corn Plant
  79. 79. Pothos Pothos • The pothos plant, or Epipremnum aureum, is a common hanging, climbing plant that’s found in many homes today, but two of its greatest health benefits are relatively unknown. • Pothos cleans the air in the room where it’s growing, and it helps relax the eyes when you’re feeling congested or if they’re just a little irritated. It also helps treat and prevent ocular hypertension, cataracts, and glaucoma.
  80. 80. Pothos
  81. 81. (Kimberley Queen fern) • This fern originated in Australia, but is relatively easy to Kimberly Queen Fern Plant Features Bold and beautiful, Kimberly queen fern (also called sword fern because the fronds are straight and narrow) is easy to grow. Kimberly Queen Fern
  82. 82. Kimberly Queen Fern
  83. 83. Kimberly Queen Fern • Kimberley Queen is better suited to an indoor environment. This fern is also as effective at removing toxins as the Boston fern. • Highly effective for the removal of formaldehyde and alcohols. • High transpiration rate makes it a natural humidifier.
  84. 84. Pot Mum • The Pot Mum or Florist's Mum is a classic houseplant often brought as a present at Christmas, Easter or Mothering Sunday. • In some parts of the world it's given to a person as a symbolism of motherhood, for example shortly after the recipient has given birth
  85. 85. Pot Mum
  86. 86. Pot Mum • This is one of the very best houseplants for removing formaldehyde, benzene and ammonia from the atmosphere surrounding it.
  87. 87. Gerbera Jamesonii • The Gerbera Daisy or Transvaal Daisy is a pot plant that is related to the familiar white and yellow daisies that you find growing outside in the lawn. • The gerbera daisy was included in the early NASA studies and is extremely effective in removing chemical vapours such as benzene from the air. • Its colourful display, high transpiration rate and ability to cleanse the air of toxic gases make this a highly valued seasonal indoor plant.
  88. 88. Gerbera Jamesonii
  89. 89. Dracaena "Warneckei" (Dracaena dermensis) Dracaena Plant • Dracaena (Dracaena spp.) plants provide exotic, landscape shrubs. • Dracaenas can grow rather large, which isn't a problem outdoors, but it is for most owners of this plant.
  90. 90. Dracaena "Warneckei" (Dracaena dermensis) Dracaena Plant
  91. 91. Dracaena "Warneckei" (Dracaena dermensis) Dracaena Plant • Dozens of dracaena (Dracaena spp.) varieties are found at green public spaces such as shopping centers, airports and office landscapes. • Dracaena remove toxins from the air.
  92. 92. Dragon Trees • Dracaena Marginata or the Madagascar Dragon Tree is just one of many houseplants belonging to the Dracaena Group. • The common name is a combination of its native origin, "Madagascar" and its more famous cousin Dracaena Draco (meaning Dragon) well known for its tendency to ooze red blood like resin when cut giving it an "alive" quality.
  93. 93. Dragon Trees
  94. 94. Dragon Trees • Dragon Tree cleans the air and is especially adapt at filtering out xylene and trichloroethylene.
  95. 95. Dragon Trees
  96. 96. Red Emerald Philodendron • “Red Emerald”. This is the red variety of the Philodendron erubescens and is a climbing, tropical plant. • The plant is characterised by thin, wine-red colored stalks and green, glossy leaves.
  97. 97. Red Emerald Philodendron
  98. 98. Red Emerald Philodendron • The Red Emerald Philodendron is one of the most common vining types of houseplants. Vining philodendrons are among the easiest philodendrons to care for and are leaders in removing toxic gases from indoor environment.
  99. 99. Red Emerald Philodendron
  100. 100. Syngonium Podophyllum Syngonium podophyllum • The Syngonium podophyllum also known as Nephthytis or Arrowhead plant is a hardy houseplant. Syngonium plants are not just decorative, they have the ability to cleanse the air for you, breathe and act as anti-pollutants. • These plants can reduce components of indoor air pollution, even volatile organic compounds such as benzene, formaldehyde, toluene, and xylene. They also reduce airborne microbes and increase humidity.
  101. 101. Syngonium Podophyllum • Researchers from NASA and other organizations have approved this plant as an air purifier, and it tops the list. • Syngoniums absorb pollutants into their leaves, and the toxins go to the root zone where they are transformed into nutrients for the plant.
  102. 102. Syngonium Podophyllum
  103. 103. Deffenbachia (Dumb Cane / Leopard Lily) • Dieffenbachia or (to use its common name) Dumb Cane has a bad reputation The truth is that Dumb Canes are poisonous, however it rarely kills human or animal. • All parts of the plant have lots and lots of microscope needle-shaped calcium oxalate crystals and when some unfortunate animal (or person) chows down, they end up with a painful and swollen mouth. • In some cases the swelling is so bad it causes the victim to go silent for inability to talk, this is where the common name of Dumb Cane came from.
  104. 104. Deffenbachia (Dumb Cane / Leopard Lily) • NASA tests confirm that plants clean formaldehyde and other toxins from the air. We have formaldehyde in our homes from paper towels, garbage bags, tissues, carpet backing, and floor coverings. • Dieffenbachia removes not only formaldehyde, but also xylene and toluene - two other pollutants.
  105. 105. Deffenbachia (Dumb Cane / Leopard Lily)
  106. 106. Deffenbachia (Dumb Cane / Leopard Lily)
  107. 107. The Parlour Palm • The Parlour Palm, or Parlor Palm in America, or by its latin name of Neanthe bella is one of the most sought after indoor palms around today. Being effective at cleaning the air and making it on to NASA's list of 50 Indoor plants that clean the air.
  108. 108. The Parlour Palm
  109. 109. The Parlour Palm
  110. 110. Weeping Fig • The Ficus Benjamina or as it's more commonly known, the Weeping Fig, is a common indoor houseplant which comes in multiple different looks and styles. • For example it can be grown as a tall bushy indoor plant, as a tall indoor tree with leafless braided trunks or even as a short pot plant. You may also come across this plant being grown happily as a Bonsai Tree.
  111. 111. Weeping Fig
  112. 112. Weeping Fig • The leaves on the all green variety are unremarkable and the Weeping Fig is not a flowering houseplant, so its main attraction is the overall shape and elegant appearance that it creates. With reasonable care, you can have a tree-like indoor plant which is both grand and impressive but at the same time graceful and tranquil.
  113. 113. Weeping Fig
  114. 114. Weeping Fig • Weeping Figs tend to be reasonably priced and are frequently stocked anywhere that houseplants are sold. • It's also an excellent plant to have around if you suffer from poor indoor air quality as it cleans and filters the air of harmful pollutants.
  115. 115. Umbrella Plant (Schefflera / Heptapleurum ) • The Umbrella Plant (Schefflera or Heptapleurum) is another houseplant which goes by many names including the Dwarf Umbrella Tree, Parasol Plant and Octopus Tree. • The Schefflerlla with its attractive, glossy green leaves will fit nicely in your indoor garden to complement your home decor. • It requires little care, and will easily live and grow for as long as 20 years. In addition to its decorative qualities, the umbrella plant is beneficial for your health because it rids your indoor air of toxins.
  116. 116. Umbrella Plant (Schefflera / Heptapleurum )
  117. 117. Wax Begonia (Begonia Semperflorens) • Begonias are perhaps one of the most enduring and traditional houseplants you'll come across. They're easily loved but can equally be hated for being "old fashioned plants Grandmother used to grow". Regardless, for the most part they're easy going, tolerant and somewhat forgiving of occasional poor care.
  118. 118. Wax Begonia (Begonia Semperflorens)
  119. 119. Wax Begonia (Begonia Semperflorens) The Wax Begonia, (Begonia semperflorens), thrives in very sunny areas of your home, and produces attractive clusters of red, white, or pink flowers during the summer months. • This plant is believed to be excellent at filtering out benzene, other chemicals, produced by toluene, a liquid within some adhesives and waxes. • For purer air in your home, nothing can beat the natural air-cleaning attributes of these amazing plants. • When you use them in conjunction with a whole house fan to help improve your ventilation, their effects can be even further intensified.
  120. 120. Lacy-Tree Philodendron • Philodendron bipinnatifidum (common names: lacy tree philodendron, selloum) is a plant that belongs to the family Araceae and subgenus Meconostigma, one of three subgenera within the genus Philodendron. The commonly used name Philodendron selloum
  121. 121. Lacy-Tree Philodendron
  122. 122. Heart-Leaf Philodendron (Philodendron Oxycardium) Heart leaf Philodendrons are some of the most popular indoor plants we use in homes and offices because they thrive on neglect and are almost impossible to kill. Another great plus, Philodendron Plants remove air-born toxins such as formaldehyde from the air.
  123. 123. Heart-Leaf Philodendron (Philodendron Oxycardium)
  124. 124. Mother-in-Law's Tongue or Snake Plant • Sansevieria, or the Mother-in-Law's Tongue / Snake Plant as it's commonly known is a truly remarkable and striking easy care house plant.
  125. 125. Mother-in-Law's Tongue or Snake Plant
  126. 126. Mother-in-Law's Tongue or Snake Plant • A lot of people believe the name comes from "Sand Snake", with its cacti like properties and appearance of a rising snake it's not hard to see why.
  127. 127. Mother-in-Law's Tongue or Snake Plant • Mother-in-Law's Tongue is known as "the bedroom plant." While most plants take away oxygen at night, this one gives off oxygen at night. • The plant also filters formaldehyde, trichloroethylene, xylene, toluene, and benzene from the air.
  128. 128. Dumb Cane (Dieffenbachia camilla) • Dieffenbachia has come a long way since its origin in the jungles of Brazil. The plant was originally a tall, bare stalk with a tuft of foliage at the top. • This lovely plant lasts eight to 15 years with proper care and works well with most decors.
  129. 129. Dumb Cane (Dieffenbachia camilla)
  130. 130. Dumb Cane (Dieffenbachia camilla) • All Dieffenbachia hybrids contain calcium oxalate crystals that may irritate mucus membranes. • Chewing the stems causes the throat and tongue to swell making speech impossible, thus the name “dumb cane.” Suffocation may result from severe swelling. The sap from the leaves and stems is poisonous to cats.
  131. 131. Elephant Ear Philodendron • This vining type of philodendron with long, arrow-shaped leaves, prefers warmth, moisture and indirect light. • Although not a climber, the slow-growing Elephant ear philodendron needs a support for proper self-expression.
  132. 132. Elephant Ear Philodendron
  133. 133. Norfolk Island Pine (Araucaria heterophylla) Norfolk Island Pine (Araucaria heterophylla) Norfolk Island pine trees (Araucaria heterophylla) are commonly used as those cute, little houseplant Christmas trees that you can buy around the holidays.
  134. 134. Norfolk Island Pine (Araucaria heterophylla)
  135. 135. King of Hearts (Homalomena wallisii) • The King of Hearts is as attractive as it is proficient at removing ammonia from the atmosphere. • It is not the easiest plant to maintain, but enthusiasts hope that one day a cultivar able to withstand a reasonable amount of neglect will grace the living rooms of all beginner plant caretakers all over the place.
  136. 136. King of Hearts King of Hearts (Homalomena wallisii)
  137. 137. Prayer Plant (Maranta leuconeura “Kerchoveana”) • The endearing Prayer Plant hailing from South America is a unique specimen to behold with its distinctive rows of brown to dark-green lines crossing its leaf midribs. • As dusk approaches, the light-green leaves fold upwards, giving the plant the appearance of praying. Actually, the plant is closing its leaves to conserve moisture. The Prayer Plant is a great addition to your room or office as a unique conversation piece. • A small and compact houseplant, the Prayer Plant is ideal for humid kitchen windowsills without any draft, or in any spot that does not fluctuate in temperature too much.
  138. 138. Prayer Plant (Maranta leuconeura “Kerchoveana”)
  139. 139. Prayer Plant (Maranta leuconeura “Kerchoveana”)
  140. 140. The Dwarf Banana • Dwarf Banana plants are found growing in parts of Asia for mass cultivation and they are sometimes grown as tall specimen plants in gardens at the back of borders to add a touch of the tropics.
  141. 141. The Dwarf Banana
  142. 142. The Dwarf Banana • Although true Banana plants are far too large for any house, the Dwarf Musa Banana, or Dwarf Cavendish, fits right in. • They can of course be grown in other rooms of the house, but a conservatory is an ideal situation, often giving humid, bright and spacious living accommodation which this plant craves and ultimately needs in order to do well.
  143. 143. The Dwarf Banana
  144. 144. Christmas Cactus Christmas Cactus - Schlumbergera Buckleyi. • No wonder almost every one who comes across this houseplant just calls it the "Christmas Cactus" or "Thanksgiving Cactus". And if you have come across this plant, you won't forget either of them in a hurry. With their attention grabbing large and vibrant, but elegant, flowers they leave a lasting impression. • Unlike most plants, removes carbon dioxide at night and releases oxygen during the day. Perfect while your sleeping.
  145. 145. Christmas Cactus
  146. 146. Easter Cactus • The Easter Cactus is similar in appearance to its Christmas counterpart, but the Easter Cactus blooms in the spring and its arched branches do not droop as drastically. • both varieties of cacti have the unusual characteristic of removing carbon dioxide and releasing oxygen into the atmosphere at night (which is the opposite of most plants, except for the Snake Plant). • Next to the Poinsettia, the Christmas Cactus is the second most popular indoor flowering houseplant for the holiday season.
  147. 147. Easter Cactus
  148. 148. Ellen Danika (Cissus rhombifolia “Ellen Danika”) • This vining plant, particularly the compact cultivar “Ellen Danika”, is a popular sight in hanging baskets in public buildings. It is easy to grow and can withstand a bit of office-level neglect. • This ivy likes a trellis and is a fast-growing air- purifying plant. The larger the plant and the more space the plant has to climb, the greater the surface area of its leaves and the greater potential for filtering the air. To maintain the plant’s thickness and prevent a straggly appearance, pinch off growing tips every so often.
  149. 149. Ellen Danika (Cissus rhombifolia “Ellen Danika”)
  150. 150. Lily Turf Lily Turf (Liriope spicata) • You might recognize Lily Turf from other popular scenery, such as in outdoor displays as border grass, as edging for rock gardens, and in various extensive uses by commercial interior plant-scapers. • A good plant to have around if you need to remove excess ammonia from the air.
  151. 151. Lily Turf Lily Turf (Liriope spicata)
  152. 152. Dendrobium Orchid Dendrobium Orchid (Dendrobium sp.) • Orchids absorb carbon dioxide and release oxygen at night, the opposite of most plants. Dendrobiums are moderately effective at removing alcohols, acetone, formaldehyde and chloroform from the atmosphere.
  153. 153. Dendrobium Orchid Dendrobium Orchid (Dendrobium sp.)
  154. 154. Spider Plant (Chlorophytum comosum) • Spider Plants, or Chlorophytum, are timeless and easy to look after houseplants that originate from the tropical and southern regions of Africa. They are potentially one of the easiest and rewarding indoor plants you can grow.
  155. 155. Spider Plant (Chlorophytum comosum)
  156. 156. Spider Plant (Chlorophytum comosum) Spider plant (Chlorophytum comosum) • Even if you tend to neglect houseplants, you’ll have a hard time killing this resilient plant. With lots of rich foliage and tiny white flowers, the spider plant battles benzene, formaldehyde, carbon monoxide and xylene, a solvent used in the leather, rubber and printing industries. As an added bonus, this plant is also considered a safe houseplant if you have pets in the house. (Find more houseplants that are safe for pets.)
  157. 157. Spider Plant (Chlorophytum Comosum)
  158. 158. Chinese Evergreen (Aglaonema Crispum) • Aglaonema is an easy care indoor plant. It can be maintained at the lower light levels often found in the typical home or office environment.
  159. 159. Chinese Evergreen (Aglaonema Crispum)
  160. 160. Chinese Evergreen (Aglaonema Crispum) • Known for thriving in low light conditions, the Chinese evergreen is not particularly conducive to temperatures lower than 13 degrees celcius. It helps in removal of chemical vapours from indoor environments.
  161. 161. The Anthurium • A number of Anthurium species have started to become quite trendy of late, tending to appear more frequently in many shops and nurseries. • They're not the cheapest houseplants you can purchase, especially if compared with the other indoor plants you may find situated nearby. However despite the price tag they're certainly exotic and striking and arguably well worth the money. • The flowers are long lasting and it's not unusual for an Anthurium to be in almost continuous flower. With the bright waxy tough flowers hovering above the contrasting dark green leaves for months on end they certainly have many fans.
  162. 162. The Anthurium
  163. 163. The Anthurium • Their large, dark leaves suck up ammonia, formaldehyde, toluene and xylene, so they're a thoughtful present for a workplace (especially around copiers, printers or adhesive.
  164. 164. The Anthurium
  165. 165. Crotons, Codiaeum variegatum • With its magnificent foliage in rich autumn colors, a garden croton exudes in living spaces comfort and good mood. • The wonderful varieties of Codiaeum variegatum, with the impressively ornamental leaves, act also as an invigorating air freshener. No wonder that the tropical, evergreen ornamental plant is at the top of the list of the most popular indoor plants.
  166. 166. Crotons, Codiaeum variegatum
  167. 167. Poinsettia • Poinsettia is Christmas, or at least for the majority of people who purchase this seasonal easy and beautiful houseplant. The red and green of the plant are perfect traditional Christmas colours so suit multiple colour schemes at this time of year. • Vivid reds and strongly contrasting dark green leaves are the most popular leaf colours you will come across, but if you search a bit harder you can find other named varieties of Poinsettia such as "Premium Apricot", "Cinnamon Star" and "Ice Punch".
  168. 168. Poinsettia
  169. 169. Dwarf Azalea (Rhododendron simsii "Compacta") Dwarf Azalea • The beauty of dwarf azaleas is that they bloom on and off all year - even in shadier areas - staying small and manageable. • Dwarf shrubs like the popular Red Ruffle azalea work well in almost any kind of light, and are especially appealing in a formal landscape.
  170. 170. Dwarf Azalea (Rhododendron simsii "Compacta")
  171. 171. Calathea (Peacock Plant / Zebra Plant / Rattlesnake Plant) • When Calathea is grown as a house plant it sometimes goes by the name Peacock Plant, Zebra Plant or Rattlesnake Plant because of its leaf markings, but it's much more common to stick to its latin name of Calathea.
  172. 172. Calathea (Peacock Plant / Zebra Plant / Rattlesnake Plant)
  173. 173. Calathea (Peacock Plant / Zebra Plant / Rattlesnake Plant) • Calathea is a special, highly-decorative houseplant with colourful, variegated foliage. • Calathea is a houseplant that really purifies the air, so it is a true eye-catcher in every interior that also makes a contribution to a better and healthier indoor climate. • Calathea is also special for another reason: it closes its leaves at night and opens them again in the morning. This is the reason why Calathea is also called the ‘living plant’.
  174. 174. Aloe Barbadensis (Aloe Vera) • The Aloe plant is one of the more commonly known houseplants because of the Aloe Vera gel you find inside its leaves. • There are several different types of Aloe Vera plants you can buy and even more types of Aloe available. • The majority make good houseplants, and grow very fast when compared to other succulents
  175. 175. Aloe Barbadensis (Aloe Vera)
  176. 176. Aloe Barbadensis (Aloe Vera) • Aloe Vera is a succulent, perennial plant that has the ability to filter benzene and formaldehyde. There are about 250 varieties you can choose from. It is easy-to-grow and requires a lot of sunlight.
  177. 177. Cyclamen Persicum (Florist's Cyclamen) • The indoor Cyclamen otherwise known as the Florist's Cyclamen is truly a special looking houseplant, the flowers are not only striking, pretty and colorful but full of poise and elegance.
  178. 178. Cyclamen Persicum (Florist's Cyclamen)
  179. 179. Aechmea Fasciata (Urn Plant / Silver Vase Plant) • The Aechmeas are traditional Bromeliads, with the Urn Plant or Silver Vase Plant being one of the most popular and well known. • It has leathery tough arched leaves, blotched silver and sea green that overlap into a rosette forming a watertight "vase" or "urn" which gives rise to its common name.
  180. 180. Aechmea Fasciata (Urn Plant / Silver Vase Plant)
  181. 181. Phalaenopsis (Moth Orchid) The Moth Orchid Rise to Fame • The Moth Orchid, Phalaenopsis or Phal's are very well known house plants and easily recognised today and have arguably done more to raise the popularity of orchids in general than any other genus.
  182. 182. Phalaenopsis (Moth Orchid)
  183. 183. Kalanchoe Blossfeldiana (Flaming Katy) • Kalanchoe blossfeldiana often goes by the shortened name of Kalanchoe or by its more common names of Flaming Katy, derived from its colorful and vibrant blooms
  184. 184. Kalanchoe Blossfeldiana (Flaming Katy)
  185. 185. Conclusion • In an office or home, plants can have a profound influence On peoples’ psychological well-being. • It has been shown that plants in living and work spaces have a measurable beneficial effect on people. • Benefits that have been documented where plants are added to the workplace include improved employee morale, increased productivity, and reduced absenteeism. In addition to plants adding beauty to a room and making it an inviting place, research has found that when people are near or tending plants, they feel relaxed and calm.
  186. 186. Conclusion
  187. 187. Conclusion • Health and discomfort symptoms were found These positive factors also need to be considered in the selection of appropriate house plants to be lower when indoor plants were present..
  188. 188. Conclusion
  189. 189. Conclusion • Not all houseplants have been tested for their ability to clean indoor air. Of those tested, not all have proven equally effective. It cannot be assumed that all harmful pollutants can be removed by houseplants. While houseplants are not a “total solution” to improving indoor air quality, they should not be overlooked as an aid in creating interior spaces conducive to the health of those who occupy them.
  190. 190. References Air Purifying plants-A Global Perspective • https://www.slideshare.net/PPRCayur/air-purifying-plants Air Cleaning Plants –NASA • http://www.boredpanda.com/best-air-filtering-houseplants-nasa/ Improving Indoor Air Quality with Plant-Based Systems • http://landscapeontario.com/attach/1301596722.Improving_Indoor_Air_Quality_with_Plan t-Based_Systems.pdf NASA Guide to Air filtering house plants • https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19930073077.pdf Using Houseplants To Clean Indoor Air • https://www.ctahr.hawaii.edu/oc/freepubs/pdf/of-39.pdf 50 Plants that Clean the Air in your Home or Office • http://www.ourhouseplants.com/guides/50-plants-that-clean-the-air
  191. 191. Thanks…

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