The high efficiency particulate air (hepa) filters Diaries
Basic Selection Efficiency Curve with Filter Assortment Mechanisms HEPA filters are composed of a mat of randomly arranged fibers.[16] The fibers are usually composed of polypropylene or fiberglass with diameters between 0.five and 2.0 micrometers. Usually, these filters are composed of tangled bundles of fine fibers. These fibers make a slender co