The Uni-Guard™ DOF (diffuser outlet filtration) is an individual room air filtration system. The company says the system combines its Valid Air® high-performance ceiling air diffusers with built-in Filtrete™ technology from 3M to protect building occupants from recirculated airborne contaminants. According to the manufacturer, this product traps particles that accumulate inside a building’s ducts in a filter located inside the ceiling air vent. Efficiencies range from MERV 8 to MERV 16, depending on the application, with low static pressure drop. Carbon- and zeolite-impregnated filters are available.

Warren Technology, 2050 W. 73 St., Hialeah, FL 33016-9912; 305-556-6933; 305-557-6157 (fax);;

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