Counterpoising Circular Pressure Ventilator

CM-1110-S

●The function of this ventilator is to keep the inside and outside pressure to be alanceable , even the inside temperature is under 0℃, so as to ensure free open of the door.
●With a temperature controller inside the window, If the temperature inside the coldroom is below -40℃ ,which also keep the window's temperature within +20℃~40℃, then guarantee fluent ventilation.
●With a stainless steel filtrating net, which prevent the insect from entering.
●Groove on the surface, avoid the inleakage of water.
●AC 220V or AC 110V are on your option.