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Welcome to the Camfil Farr Training Academy

By the end of this webinar you will have an update on the new
EN779:2012 standard and the opportunity to have clean Indoor
Air Quality and energy efficiency with Low Energy Air Filters




                                                                1
EN779:2012 will be arriving




       Peter Dyment 07-02-2012
WHEN?
The latest indications are the standard will be due for
  publication later this year. The situation will be updated
  over the next few months.


We are all trusting that a decision to proceed will be
 forthcoming so that our industry can make progress and
 plan for the future.

                                                               3
EN779 as a filter test standard has been with us since 1993
and was updated in 2002.
What is EN779:2012 about and why is it important?




It is the updated European Standard that gives a laboratory test
    and class to benchmark HVAC air filter particulate efficiency.
It uses a test aerosol of 0.4 micron and ASHRAE dust to load
    (not test) the filter and increase air filter resistance in stages.
                                                                          4
The EN779:2002 test is usually performed
by an independent test house on air filters
up to F9 classification and a test report is
issued. What is new in the 2012 update?




                                        EN779:2002 Test Rig




                                                              5
EN779 was revised in 2002 because of the problem regarding the
    inconsistent particulate life performance of synthetic media filters.




SINTEF test results Norway (1995) show real lifetime performance losses
                                                                            6
Synthetic F7 Class filters have been marketed for many years but some
  a have a working particulate efficiency dropping as low as 10%.
EN13779 advises that F7 is the minimum filter class required for
  cleaning air and thereby making it safe to inhale. Clearly this
  standard assumes a consistent F7 performance.




                                                                        7
EN779:2012 has set the minimum particulate
        efficiency (ME) of 35% on an F7 grade filter. This
        will exclude inferior synthetic media HVAC filters.




Min
Effy.
35%




                                                              8
Test standard for coarse and fine air filters
                                                                                         1)
                                            Table 1— Classification of air filters
        Group         Class          Final test          Average                      Average                   Minimum
                                                                                                                         2)
                                     pressure        arrestance (Am)              efficiency (Em)              Efficiency
                                       drop          of synthetic dust          of 0,4 µm particles        of 0,4 µm particles
                                         Pa                    %                         %                          %

        Coarse          G1               250             50 ≤ Am < 65                         -                        -

                        G2               250             65 ≤ Am < 80                         -                        -

                        G3               250             80 ≤ Am < 90                         -                        -

                        G4               250             90 ≤ Am                              -                        -

        Medium          M5               450                    -                   40 ≤ Em < 60                       -

                        M6               450                    -                   60 ≤ Em < 80                       -

         Fine           F7               450                    -                   80 ≤ Em < 90                      35

                        F8               450                    -                   90 ≤ Em < 95                      55

                        F9               450                    -                   95 ≤ Em                           70
   NOTE
   1)
      The characteristics of atmospheric dust vary widely in comparison with those of the synthetic loading dust used in the
   tests. Because of this the test results do not provide a basis for predicting either operational performance or life. Loss of
   media charge or shedding of particles or fibres can also adversely affect efficiency.
   2)
     Minimum efficiency is the lowest efficiency among the initial efficiency, discharged efficiency and the lowest efficiency
   throughout the loading procedure of the test.
                                                                                                                                   9
Indoor Air Quality approach 2012
Particulate Efficiency

  ME (Minimum Efficiency)
        - F7 > 35%
        - F8 > 55%
        - F9 > 70%


     Average efficiency – as before with caution
          - nothing to change



                                                   10
Indoor Air Quality approach 2012


   Keep the IAQ level high!
   Risk of decreasing efficiency from competitors!



                                                     11
IAQ approach for 2012
Recommendations in EN13779: 2007
 When the outdoor air quality has been categorized, EN13779:2007 clearly specifies the filter
 class that is required to achieve preferred indoor air quality:




                                                                                                12
Indoor Air improvement during 50 years

                       2011 filters for good IAQ

                       Particulate



1961 filters for good IAQ
                                                   13
Indoor Air improvement during 50 years

                         2011 filters for good IAQ
                              IAQ / health
                         Particulate


       Protecting equipment
1961
                                                     14
Indoor Air improvement during 50 years

                         2011
                         IAQ health
                         Particulate           2012

                                       EN779:2012
       Protecting equipment
1960
                                                      15
Indoor Air improvement during 50 years

                         2011
                         IAQ health
                         Particulate          2012
                                         Risk ?
                                       Possibility!
       Protecting equipment
1961
                                                      16
Why is there a risk during 2012 ?
• Glass fibre media F7 >60% efficiency – optimum

• The new EN779:2012          ME = 35% for F7
  (Minimum Efficiency)

• Could lead to over 40% less clean air


                                                   17
Eurovent Energy Efficiency Rating Programme


   Based on……
        - EN779:2012


   ME
        - F7 > 35%
        - F8 > 55%
        - F9 > 70%


                                              18
Eurovent Energy Efficiency Rating Programme


 • ME
        - F7 50 > 35%
        - F8 70 > 55%
        - F9 80 > 70%


   dP      lower

   Energy rating        higher
                                              19
Why a is there a risk in 2012 ?
• Traditional glass fibre media
  F7 > 60% minimum efficiency – in built up environment
• Synthetic F7 charged media – ME = 16-20%

• Synthetic media has to improve to reach minimum 35% ME
  (minimum efficiency) – with increased pressure drop

• New glass media >45% efficiency – lower pressure drop

                                                           20
Check the Indoor Air Quality Factor (IAQ factor)

The IAQ factor is found by
dividing the LCC by the ME.
It tells you have much filter
performance you are getting for
your money.

EG. M7 F7 bag = 24.7 IAQ
G4 S-Flo-F7 bag = 154.6 IAQ

IAQ Factor is 6.25 X

per % Minimum Efficiency (ME)

                                                     21
HVAC Air Filtration
                               Hi-Flo F7


Synthetic medias                                All medias shown
rely on electrostatic                           at the same
charge for good                                 magnification
particulate efficiency




         Synthetic Competitor F7           S-Flo F7




                                                                   22
What is the 2012 HVAC product opportunity?
• Synthetic media filters will have to improve to reach 35% minimum
  particulate efficiency (ME) – meaning an increased pressure drop

• Reduce pressure drop with LEAF – keep minimum efficiency high (ME)
  usually about 55% to 60% for F7.

• Never compromise on filter particulate efficiency !

• Save energy – better LCC – Eurovent Energy Classification Programme

• That is an improvement opportunity!
                                                                        23
THANK YOU
                   for attending this webinar session

                   ANY QUESTIONS?
     Please do not hesitate to contact Camfil Farr for any additional
                       information or to arrange a visit.
For more information about clean air solutions, improving air quality, low
          energy air filters, CRC (Carbon Reduction Commitment),
              AHUs (Air Handling Units) and the EPBD, visit
                www.keepthecityout.co.uk
               www.lowenergyairfilter.co.uk
                   blog and subscribe to the RSS Feed                        24

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Camfil Farr Training Academy - New EN779:2012

  • 1. Welcome to the Camfil Farr Training Academy By the end of this webinar you will have an update on the new EN779:2012 standard and the opportunity to have clean Indoor Air Quality and energy efficiency with Low Energy Air Filters 1
  • 2. EN779:2012 will be arriving Peter Dyment 07-02-2012
  • 3. WHEN? The latest indications are the standard will be due for publication later this year. The situation will be updated over the next few months. We are all trusting that a decision to proceed will be forthcoming so that our industry can make progress and plan for the future. 3
  • 4. EN779 as a filter test standard has been with us since 1993 and was updated in 2002. What is EN779:2012 about and why is it important? It is the updated European Standard that gives a laboratory test and class to benchmark HVAC air filter particulate efficiency. It uses a test aerosol of 0.4 micron and ASHRAE dust to load (not test) the filter and increase air filter resistance in stages. 4
  • 5. The EN779:2002 test is usually performed by an independent test house on air filters up to F9 classification and a test report is issued. What is new in the 2012 update? EN779:2002 Test Rig 5
  • 6. EN779 was revised in 2002 because of the problem regarding the inconsistent particulate life performance of synthetic media filters. SINTEF test results Norway (1995) show real lifetime performance losses 6
  • 7. Synthetic F7 Class filters have been marketed for many years but some a have a working particulate efficiency dropping as low as 10%. EN13779 advises that F7 is the minimum filter class required for cleaning air and thereby making it safe to inhale. Clearly this standard assumes a consistent F7 performance. 7
  • 8. EN779:2012 has set the minimum particulate efficiency (ME) of 35% on an F7 grade filter. This will exclude inferior synthetic media HVAC filters. Min Effy. 35% 8
  • 9. Test standard for coarse and fine air filters 1) Table 1— Classification of air filters Group Class Final test Average Average Minimum 2) pressure arrestance (Am) efficiency (Em) Efficiency drop of synthetic dust of 0,4 µm particles of 0,4 µm particles Pa % % % Coarse G1 250 50 ≤ Am < 65 - - G2 250 65 ≤ Am < 80 - - G3 250 80 ≤ Am < 90 - - G4 250 90 ≤ Am - - Medium M5 450 - 40 ≤ Em < 60 - M6 450 - 60 ≤ Em < 80 - Fine F7 450 - 80 ≤ Em < 90 35 F8 450 - 90 ≤ Em < 95 55 F9 450 - 95 ≤ Em 70 NOTE 1) The characteristics of atmospheric dust vary widely in comparison with those of the synthetic loading dust used in the tests. Because of this the test results do not provide a basis for predicting either operational performance or life. Loss of media charge or shedding of particles or fibres can also adversely affect efficiency. 2) Minimum efficiency is the lowest efficiency among the initial efficiency, discharged efficiency and the lowest efficiency throughout the loading procedure of the test. 9
  • 10. Indoor Air Quality approach 2012 Particulate Efficiency ME (Minimum Efficiency) - F7 > 35% - F8 > 55% - F9 > 70% Average efficiency – as before with caution - nothing to change 10
  • 11. Indoor Air Quality approach 2012 Keep the IAQ level high! Risk of decreasing efficiency from competitors! 11
  • 12. IAQ approach for 2012 Recommendations in EN13779: 2007 When the outdoor air quality has been categorized, EN13779:2007 clearly specifies the filter class that is required to achieve preferred indoor air quality: 12
  • 13. Indoor Air improvement during 50 years 2011 filters for good IAQ Particulate 1961 filters for good IAQ 13
  • 14. Indoor Air improvement during 50 years 2011 filters for good IAQ IAQ / health Particulate Protecting equipment 1961 14
  • 15. Indoor Air improvement during 50 years 2011 IAQ health Particulate 2012 EN779:2012 Protecting equipment 1960 15
  • 16. Indoor Air improvement during 50 years 2011 IAQ health Particulate 2012 Risk ? Possibility! Protecting equipment 1961 16
  • 17. Why is there a risk during 2012 ? • Glass fibre media F7 >60% efficiency – optimum • The new EN779:2012 ME = 35% for F7 (Minimum Efficiency) • Could lead to over 40% less clean air 17
  • 18. Eurovent Energy Efficiency Rating Programme Based on…… - EN779:2012 ME - F7 > 35% - F8 > 55% - F9 > 70% 18
  • 19. Eurovent Energy Efficiency Rating Programme • ME - F7 50 > 35% - F8 70 > 55% - F9 80 > 70% dP lower Energy rating higher 19
  • 20. Why a is there a risk in 2012 ? • Traditional glass fibre media F7 > 60% minimum efficiency – in built up environment • Synthetic F7 charged media – ME = 16-20% • Synthetic media has to improve to reach minimum 35% ME (minimum efficiency) – with increased pressure drop • New glass media >45% efficiency – lower pressure drop 20
  • 21. Check the Indoor Air Quality Factor (IAQ factor) The IAQ factor is found by dividing the LCC by the ME. It tells you have much filter performance you are getting for your money. EG. M7 F7 bag = 24.7 IAQ G4 S-Flo-F7 bag = 154.6 IAQ IAQ Factor is 6.25 X per % Minimum Efficiency (ME) 21
  • 22. HVAC Air Filtration Hi-Flo F7 Synthetic medias All medias shown rely on electrostatic at the same charge for good magnification particulate efficiency Synthetic Competitor F7 S-Flo F7 22
  • 23. What is the 2012 HVAC product opportunity? • Synthetic media filters will have to improve to reach 35% minimum particulate efficiency (ME) – meaning an increased pressure drop • Reduce pressure drop with LEAF – keep minimum efficiency high (ME) usually about 55% to 60% for F7. • Never compromise on filter particulate efficiency ! • Save energy – better LCC – Eurovent Energy Classification Programme • That is an improvement opportunity! 23
  • 24. THANK YOU for attending this webinar session ANY QUESTIONS? Please do not hesitate to contact Camfil Farr for any additional information or to arrange a visit. For more information about clean air solutions, improving air quality, low energy air filters, CRC (Carbon Reduction Commitment), AHUs (Air Handling Units) and the EPBD, visit www.keepthecityout.co.uk www.lowenergyairfilter.co.uk blog and subscribe to the RSS Feed 24