This fan filter unit operates on 230V AC power with a frequency of 50/60Hz. It has an air flow rate of 660m³/h and a static pressure of 220Pa. The unit is coloured grey (RAL7035) and has an IP54 rating. The fan units can be reverse mounted for 'B' flow. The filter material is made of thermo-linked progressive structure synthetic fiber and has a permanent sealing gasket made of polyurethane foam. It can operate in temperatures ranging from -10°C to 55°C. The dimensions of the unit are 325Wx325Hx142Dmm.