Cabinet fans with integrated, lowpressure drop filters, manufactured from galvanised sheet steel and internally isolated with 30mm thick mineral wool (M0), airtight intake and discharge joints, easy access to filters by, rotary traction type closures. Equipped with backward curved centrifugal impellers.Brushless, high performance and low consumption EC motor, 230V ± 10% 50/60Hz power supply, IP44, ball bearings, thermal protection, ON/OFF switch with built-in potentiometer to adjust speed and analogue input 0-10V signal to control the fan.All models have the capacity to mount up to 3 filters.