Governair® offers FANWALL TECHNOLOGY® for air handlers, packaged units, heat recovery units, powered condensers, and retrofit applications. FANWALL TECHNOLOGY is arguably the first true innovation in the air-handling equipment industry in years. Based on replacing large fans with a modular array of smaller fans, FANWALL TECHNOLOGY allows for major improvements in footprint, reliability, energy efficiency, sound attenuation, operating costs, and is also ideal for retrofit applications. Coplanar silencers provide substantial reduction in fan sound power levels without adding the length to the system associated with attenuation devices, and maintains full fan efficiency. FANWALL TECHNOLOGY is modular by design and uses multiple, small diameter, high-efficiency airfoil plenum fans. Building structural modifications and the need for large rigging and handling equipment is often times completely eliminated with a FANWALL retrofit. FANWALL TECHNOLOGY conveniently fits through standard doorways, roof hatches, tight hallway access, and elevators. By increasing system efficiency and reducing energy usage, a FANWALL retrofit can significantly reduce your total cost of ownership and return your investment within the first few years of operation.