Counterpoising pressure ventilator

Product Attribute:

Applicationt: 

Window

Production Description:

1. The function of this ventilator is to keep the inside and outside prsssure to be balanceable , even if the inside temperature is below 0, so as to ensure free opening of the door . 2. With a temperature controller inside the window, which keep the window’s temperature within 20-40, then guarantee fluent ventilation. 3. With a stainless steel mesh, which prevent the insect from entering. 4. Groove on the vents , avoid the inleakage of water. AC 220V or AC 110V are on your option.