Fresh Air Louvers have a 2-inch-deep fixed horizontal vanes (blades) which are carefully designed to get low pressure drop, maximum free area and to prevent wind and rain-water penetration. They are available in1.25” flanged (flat or curved) frame which in turn is mechanically joined to give the highest rigidity and strength. Louvers can be supplied as optional with galvanized bird or aluminium insect screen, volume control damper and air filter of 1”, 2” or 4” thickness. The filters are accessible from the side or backward of the louver depending upon type of installation and must be specified by the customers. These louvers are available in standard given sizes however, they can be supplied in other requested sizes and architectural shapes upon customers’ requirements.