HEPA Filters

About HEPA Air Filtration

Research Studies and Facts

HEPA air filters are largely considered the most effective type of air filter for solid particles, such as dust and other allergens.

How HEPA Air Filters Work

HEPA air filters are made from very tiny glass fibers that are made into a tightly woven paper. This creates a filter consisting of a multitude of very small sieves that can capture extremely small particles, including some biological agents. Once trapped, contaminates and particles are not able to flow back into circulation, due to the highly absorbent pores of the HEPA air filter.

HEPA Air Filter Facts & Studies

• HEPA air filters remove 99.97% of particles down to 0.3 microns in size, almost 300 times smaller than the width of a human hair.

• HEPA air filters were developed by the Atomic Energy Commission during the second World War. They were originally designed to remove radio active dust from their plants.

• HEPA air filters are recommended by the U.S. Dept. of Homeland Security.

• Journal of Hygiene study found that ionizers increase efficiency of HEPA air filters. The Multi-Tech offers an ionizer in addition to its True HEPA filter.

• A study by Air & Waste Management Association found the combination of a HEPA air filter and germicidal UV lamp reduced bacteria by 80% in a 3072 cubic foot chamber.