Soundproof boxed fan made of sheet metal. It is supplied assembled, including flanges and hooks for fastening. volume up to 3200 m3/h. Suitable for ventilation, air circulation and air exchange. For application of ventilation systems for catering establishments, industry, housing and offices. Draws warm and humid air away from growing spaces. The fan needs to be sized with 30 to 50 times the airflow of your growing room. You can then effectively control the fan speed with other devices, depending on temperature and humidity. Not only will you use the full potential of Airfan, but you will also further reduce possible noise to a minimum. The Soft-BOX Metal fan 4250 m3 is installed in a sheet with insulating foam that covers the interior and further reduces the noise that the fan produces. The fan motor is suspended in the box on rubber hinges, due to which there is a further significant reduction in the noise of the device. Discharge (m3/h): 4250 Max. current (A): 6 Inlet Diameter (mm): 1 x 315 Output Diameter (mm): 2 x 250 Size (cm): 65 x 65 x 65 Speed range (m3/h): 700 - 3600 Consumption (W): 598 - 1334 Noise level (dB): 37.2 Supply voltage: 1-phase 220/240V - 50Hz Temperature range: -30C to +70C Protection class: IP44