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| HEPA Filters - http://www.hepafilters.us/ HEPA, or High Efficiency Particulate Air, filters were designed by the United States Atomic Energy Commission during World War II. They can efficiently filter the air passing through them, removing particles as small as 0.3 microns in diameter. Learn how these filters are being used in modern day air filters and vacuum cleaners in our homes and offices. - More details |
