AHRI recommends not withdrawing ASHRAE Standard 52.2
Reprinted with permission of Air-Conditioning, Heating, and Refrigeration Institute (AHRI) Dear SSPC 52.2 Chairman, I am writing on behalf of the Air-Filtration and Ultraviolet Light Treatment (AFUVLT) Product Section of the Air-Conditioning, Heating and Refrigeration Institute (AHRI) regarding ASHRAE Standard 52.2, Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size. As …