Fan filter unit FFU can be used by connecting module. It is widely used at the occasion such as clean room, clean production line. The FFU have prefilter and HEPA filter two layers filter net. The air is taken in from the top of FFU by fan and then is filtered by prefilter and HEPA filter. The clean wind will be send and the wind speed is 0.45+/-0.2m/s. Characteristic: 1.The FFU matches centrifugal fan that is durable, low vibration and noise, adjustable air velocity, stable capability and air velocity. The fan's life p-span is more than 50 thousand hours. 2. It is suitable to assemble the production line. It can dispose to be used as single set according to crafts need and also can connect several sets to be 100 rank production lines. 3. The material is stainless steel, aluminum or cold rolled steel which is beautiful and prevent to rust. 3. In order to ensure the quality of product, FFU will be inspected by particle counter before out of factory according America Federal Standard 209E. Yours faithfully Nicole 1175mm*575mm*350mm, 35kg, 0.252m3