A fresh air ventilator is a new type of ventilation equipment that uses bidirectional ventilation to bring fresh outdoor air into the room while expelling polluted indoor air. The incoming air is filtered to ensure cleanliness. To maintain indoor temperature stability during extreme seasons, an air heat exchanger is installed to exchange temperature between the old and new air.

Designed based on the principle of mechanical air supply and induced draft, it forces the formation of a new airflow field. This independent purification system eliminates polluted air while inputting natural fresh air that is filtered, sterilized, and oxygenated.