HEPA filtration is a very highly effective filtering process created by the United States Atomic Energy Commission. HEPA filtered media is proven to be 99.97% efficient at 0.3 microns (a micron is 1/1,000,000 of a meter, or 1/25,000 of an inch). Due to their extremely high efficiency, HEPA filters have become widely used in medical, electronic and industrial applications.

How Does HEPA Filtration Work?

HEPA is actually an acronym for High Efficiency Particulate Arresting.
It was developed by the military to prevent worker exposure to radioactive plutonium and other extremely hazardous materials routinely found in nuclear weapons labs. The system is made up of ultra-fine glass fibers pressed into a paper-like material, which is then folded into pleats to maximize surface area and improve air flow; thus increasing the apparent thickness of the filter medium relative to the particle's angle of attack.

The principle means by which HEPA filters stop particles occurs at impact. As a particle tries to penetrate the filter, it runs into a fiber and, due to the ionic charge of the material, remains affixed. The prospect of a microscopic particle penetrating a HEPA filter has been likened to a grain of sand piercing a haystack.

Other filter media in use today range from extremely low-efficiency coarse fiber filters (often used in forced-air furnaces) to unpleated fabric-like filters with performance ratios approaching HEPA standards.

The continual use of HEPA filtration systems can bestow benefits above and beyond improving your health. It can also lower heating and cooling costs through improved air circulation, extend the life of furniture and painted surfaces, and reduce the need for daily housekeeping.

AmericanDuct carries a full line of HEPA filtration product that can help improve your quality of life. Order online or contact us for assistance:  (800) 550-2978