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Air cleaners designed to cleanse room air by removing particulates and gas/vapors from the air and then recirculating the cleansed air. These cleaners typically include a set of filters to remove particulates and gas/vapors; depending upon the characteristics and efficiency of the filter(s) they can remove airborne particulates (aerosols) such as aerosol bacteria, other biological agent particulates, or radioactive particles; and/or gases and vapors including toxic industrial contaminants and chemical and biological agents. Particulate and gas/vapor air cleaners are used in healthcare facilities, isolation and clean rooms, and emergency shelters.
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