Bag filters with PO are used in ventilation systems and equipment at the air inlet and in the course of air ducts. The small installation depth, the favorable initial pressure drop and high dust holding capacity make this design very economical. The square shape of the pockets permits a flexible mounting position. More information please refer to the size chart. The bag length is not variable and always amounts to 340 mm. The bag filter PO 90 can be regenerated by washing with water (max. 40 ¬į C, tap or suck off). Several pyramidal bags can be welded together, and are inherently stable by its star-shaped bag shape and require no support at the air outlet.