Industrial air filter machines, namely, ionized particulate scrubbers for removing particulates from the air, countercurrent scrubbers, crossflow scrubbers, fluidized-bed scrubbers, ionizing wet scrubbers, packaged scrubbers, venturi scrubbers and sieve tray scrubbers; tower and scrubber packing for cleaning particulates from the air, made of polypropylene, polyethylene, PVC and PVDF; mist eliminators for collecting liquid droplets from gas streams; air purification units; air purifiers; air ...