A. HEPA filter outlet is a terminal equipment of centralized air supply method. It is a non powered device and needs to be equipped with air duct. The 4-piece set of high efficiency air supply outlet includes: HEPA filter outlet, static pressure box, flange, HEPA filter and air outlet diffuser.
B. FFU is a kind of purification and filtration equipment with power device, which can be used alone or connected with air duct. It is composed of air supply box, flange, air guide plate, fan and HEPA filter