The ASHRAE 52.2-2017 test method which uses a particle counter and a defined solid aerosol to determine efficiency of a filter is the latest air filter test standard to be published by the “merican Society for Heating, Refrigerating and Airconditioning Engineers” (ASHRAE)
We have set up an ASHRAE 52.2-2017 Test Rig at our new manufacturing and test facility with the objective of answering a very commonly asked question “What is the efficiency of the filter in terms of particle size”.
The new ASHRAE 52.2-2017 EN779 test rig is capable of testing coarse (G2-G4), medium (M5-M6) & fine filters (F7-F9)On a flat sheet of media, the MPPS is determined for the given media velocity. This can be done with a laser spectrometer or a combination of electrostatic classifier and CNC (Condensed Nucleus Counter).