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  • Particulate air filters designed to remove coarse particulate from the air, typically 90 to 95% of particles larger than 1.0 micron. These filters usually consist of pleats of a filter medium separated by rigid sheets of corrugated paper or aluminum foil. Low-efficiency air filters remove most common air contaminants such as dust, pollen, spores, tobacco smoke, and most bacteria from the environment; they are not effective for removing sub micrometer particles. Low-efficiency particulate air filters are used mainly in home air filtration systems and as prefilters to protect the mechanical components of the air filtration/cleaning systems in healthcare facilities.
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