MAC ENVIRONMENTAL

air pollution control equipment, namely automatic-cleaning high efficiency particulate air filter units, [ backwardly inclined centrifugal fans, cartridge filter units, cyclone separators/collectors, controlled fire medium pressure fabric filter baghouses, positive displacement blowers, pulse jet fabric filter baghouses, ] replacement cartridge filter elements and high efficiency particulate air filter elements, [ replacement filter bags and cages, ] rotary airlocks, [ and straight-bladed centrifugal fans ]