BAXH-Dedusting Filter Box ◆ Dedusting filter box is a kind of environments protection equipment of air filtration and purifying and fresh air pressure. ◆ Simple structure, manufacture conveniently, wide application, maintaining conveniently. ◆ The internal exhaust fan kept the enough fresh air in the room to reach the target of purifying the air. ◆ It is mainly used in the air filter section of concentration ventilation and the central AC system. See more at: http://www.hefilter.com/Automatic-air-filter-equipment/BAXH-Dedusting-Filter-Box.shtml