The HEI Series air filters (baghouses) have been developed and designed specifically for the Wood Products Industry and the hard-to-unload wood shavings and fine dust. The problems of can and interstitial velocities are virtually eliminated by entering the filter media through the upper section of the bag thereby decreasing the higher velocity.  Suited for sawdust, shavings and dust collection systems.  For use in sawmills, planermills, plywood and board plants.