Understanding MERV – October 2018 NAFA User’s Guide for ANSI/ASHRAE Standard 52.2-2017 Method of Testing General Ventilation Air-Cleaning Devices for Removal Efficiency by Particle Size Introduction This ANSI/ASHRAE Standard 52.2 “Understanding MERV” User Guide was created by the National Air Filtration Association (NAFA), an international group of air filter distributors, manufacturers and engineers. This Guide,… Read more about Understanding MERV

Air filtration supplies the means to obtain the level of particulate cleanliness required by any definition of “air conditioning.” It extends from the simple task of preventing lint and other debris from plugging heating/cooling coils to removing particles as small as 0.1 micron which could cause a short circuit on a microchip. In addition to… Read more about The Importance of Air Filtration

November 09, 2007 Because NAFA supports the position stated by the Environmental Protection Agency, that “…Ozone can be harmful to health,” NAFA opposes the use of ozone producing equipment used as air cleaners or air purifiers in occupied spaces. Therefore, NAFA adopts the position that ozone air cleaner manufacturers or ozone air cleaner distributors not… Read more about NAFA Position Statement on Ozone

Using ANSI Standard 52.2 in preparedness in bio-terrorism The National Air Filtration Association (NAFA) recognizes the increased concern about dangerous airborne diseases and further understands that as an association of air filtration professionals, it has an obligation to present a position statement with respect to educating the consumer about the protection of the indoor environment.… Read more about NAFA Position Statement on Bio-terrorism