Air Filtration Articles

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…

In the last ten years, there has been increased interest in health related aspects of indoor air quality. The application of general ventilation air cleaners…

“…every child and school employee should have the right to an environmentally safe and healthy school that is clean and in good repair.” – American…