Air Filtration Articles

Make no mistake about it. It is tougher than it used to be for the filter sales professional. It is a different environment than even…

This is a summary of research completed on the fungi growing on insulation within air-handling units (AHUs) in an office building and levels of airborne…

“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…