Effects Of Humidity On The Removal Efficiencies Of Submicron Particles For Clean And Real World Loaded Air Filters (PPT)

摘要

1. Introduction: standards for efficiency testing of air filters 2. Test methods for efficiency testing at high humidity 3. Efficiency results of new flatsheet filter medias 4. Efficiency results of real world loaded air filters 5. Conclusions 6. Existing standards for filter testing do not necessarily reflect real life performance of ambient air filters 7. For clean media, efficiency drop at high humidity was most pronounced for cellulose filter and nanofibers filter 8. Real world loaded air filters show decreasing efficiencies under high humidity and fog exposure 9. Likely all tested loaded F-class (EN 779:2002) filters are below their rated average efficiency for 400 nm particles