Acoustical products: acoustical panels and silencers for HVAC, highway and cooling tower barriers, equipment barriers, production lines, paint facilities, sports facilities, airports, etc. Duct Products: Spiral, rolled, round and oval duct products for commercial, architectural and industrial HVAC applications. Energy Recovery Products: desiccant-based products to recover energy, increase ventilation and control humidity including FV series, EP series, VS series, Pinnacle series, TE-3 and TS Wheels and OEM Products, Total Enthalpy, Sensible, and Passive Wheels. 3 Angstrom Desiccant. 3A Enthalpy Wheel and Fume Hood Exhaust for dry and wet labs. Chilled Beams: passive and active beams. Closed loop glycol coils with pump and control packages.