This company’s Tri-Flow Compact filter technology (photo) is an alternative to HEPA filters for submicron particulate matter and fumes. Tri-Flow offers filtration efficiencies of 99.9999% for particles larger than 0.5 μm with two to three times more filtration area than traditional filter bags, says the manufacturer. Tri-Flow filters are self-supporting; media is pleated and continuously bonded for maximum stability. Aerodynamic gasketing optimizes pulse-cleaning efficiency and self-cleaning filter elements are easy to maintain with integral pulse-jet cleaning. — Tri-Mer Corp., Owosso, Mich.