EN779:2012 & Eurovent Energy Efficiency Classification. Steve Devine. Eurovent Energy Efficiency Classification. Energy rating system using EN779:2012 Advantages Independent label Makes filters comparable Escape price discussions Talk about IAQ and Energy Select best solution
Average Diameter ~0.08mm
Average Diameter ~7.7mm
100x difference in size, so what does loading with ASHRAE dust tell you?
Answer: How your filter will perform when it is challenged with ASHRAE dust,
Do you have ASHRAE dust in your system???
Actual Average ΔP
DP ASHRAE Dust = 0.63” WG
DP ”Real Life” = 0.46” WG
Simple averaging ΔP
(DPI+DPF)/2 = 0.75” WG
”Low energy consumption in combination with a high indoor air quality.”