FFU is long time work, low noise, maintenance-free, small vibration, speed adjusted, uniform wind speed, easy installation and so on. FFU can be modularly connected and used, making the FFU is widely used in clean rooms, dust-free operation of the station, dust-free production line, clean room assembly and the local one hundred and other applications. FFU with early, efficient two-stage filter. Fan suction from the top of the FFU air and early, high efficiency filter, filtered clean air in the entire outlet to 0.45M / S ± 20% of the wind speed uniform delivery. It is for different sizes, different cleanliness levels of clean room, micro-environment to provide high-quality clean air. In the new clean room, clean workshop retrofit renovation, you can improve the level of cleanliness, reduce noise and vibration, but also greatly reduce the cost, easy installation and maintenance, is an ideal part of the clean environment. FFU for 10 to 10,000 clean room, to facilitate the overall operation of centralized control; FFU is suitable for semiconductor, electronic, flat panel display and disk drive manufacturers and optics, bio-industry and other air pollution control has strict requirements. With unique advantages and reasonable price quickly occupied the market. Low height, the system design can save gas space. Lightweight structure design, in line with the manufacturers of the Grid system installation, but also according to the Grid system, change FFU structure size design. Internal device diffuser. Wind pressure spread evenly, the average wind speed of the wind surface is stable. Metal structure downwind liner, never aging. Eliminate secondary pollution, smooth surface, low wind resistance. Good sound insulation. Special inlet, duct design, reduce pressure loss and noise generation. High efficiency motor, the system low current consumption, energy cost savings. Single-phase motor, providing three-stage speed, according to the actual situation to increase or decrease the wind speed and air volume.