Our New Ashrae 52.2 Test Facility

The ASHRAE 52.2 - 1999 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 published by the "American Society for Heating, Refrigerating and Air conditioning Engineers" (ASHRAE).

We have set up an Ashrae 52.2 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 old Ashrae 52.1 test standard measures the efficiency of a filter using a cumbersome dust spot sampler and opacity meter. The efficiency results were based on the air filter's ability to reduce the staining potential of atmospheric dust. The test procedure did not measure "Particle Size efficiency".

To answer this often asked question about "Particle Size Efficiency" we have set up an ASHRAE 52.2 test rig. We acknowledge the immense support received from Mr. Erik Kuiper - Director Technical at Filtrair b.v., Netherlands in building this test rig. Mr. Kuiper is also a member of the ASHRAE committee that wrote this standard.