The air inlet usually stays in a close stage, the door can be opened to a special angle according to different seasons, the cold air go through the door panel and to the up space of the house, by mixing with warm air, it fall to the birds or pigs. According to different situations, the air inlet can be opened at the same time or one by one.

A good ventilation system provides the chickens with oxygen and clean air，and can keep the temperature balance.
We are the manufactory of automatic feeding systems, automatic drinking systems,ventilation systems,cooling pads system,Environment Control System, Heating System,Egg Hatchery(Incubator), A & H type laying chicken cage,Egg tray, etc.
For more information,u can contact our email: sdequipmentfactory<at>gmail.com