Air Filtration Articles

“9/11” CHANGED THE WORLD. The early reactions to the events surrounding and following 9/11 were similar to the “Chicken Little” of nursery rhyme folklore fame.…

According to the Institute of Environmental Science and Technology, (IEST) with regard to performance, there are 6 types – A, B, C, D, E &…

In Situ Determination of Fractional Efficiency in General Ventilation Filters The purpose of the EN 4/10 research paper was what many of us in the…

According to Encarta – World English Dictionary, “clearance” is defined as “removal of unwanted objects” and “permission for something to happen.” Both definitions are pertinent…

For Aerobiological Applications Air Media article published Summer 2002. by W.J. Kowalski, PE, Ph.D. and William Bahnfleth, PE, Ph.D., The Pennsyvania State University Technical input also…

When to Change Your Air Filter? When it is loaded with dust, of course. But, unfortunately, there is more to the story than this simple…

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…

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…

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…