HEPA Air Purifiers - Filter Technology Explained
HEPA filters are very popular these days. In fact, they may be one of the most commonly used air filtration filters used in American homes. Originally used by the military and medical professions, HEPA filters are extremely effective, capable to remove as much as 99.97% of all particles as small as .03 microns from the air we breath. HEPA, which stands for High Efficiency Particulate Air was developed in the 1940's by the Atomic Energy Commissions to capture radioactive dust. Today, they are used primarily to help clean dust, pollens and other allergens from the air we breathe inside of our homes and offices. Made of a paper-like glass fiber sheet pleated in a "V" pattern with corrugated aluminum separators between the pleats, HEPA filters are bonded onto a sturdy base, forming the core of the filter. The main drawback of the system is that the filters must be periodically changed for best results since the particles do become captured within it and can cause ...