Bag Filters These are extended surface dry type filters that offer high efficiency, low resistance and high dust holding capacity. Construction: High grade synthetic filter media is stitched to make pockets. These pockets are welded at the edges into a rigid, aerodynamic shape. Rigid pockets ensures that the dust cake is not disturbed during fan shut down, therefore there is no loss of pressure drop and efficiency when the fan starts up again. Special spot welded spacers ensure full media utilization. Specification: Particulate efficiency: 20, 10, 5, 3 and 0. 3 micron nominal rating is available. Application: Air handling units (ahu), air conditioning and pre filtration, ventilation and allied industries. Media: Glass fibre and synthetic non woven Manufacturing of Industrial Filters,HVAC Equipments & Air Condioning Related Components.