air curtain is another form of local air supply. Its purpose is to create an air barrier to reduce and block the convection of indoor and outdoor air, or to change the direction of polluted air flow.

air curtains are usually composed of air handling equipment, ventilators, duct systems and air distributors, and are widely used in all aspects of our daily lives.

The air curtain uses strip nozzles to send out a curtain-like air flow of a certain speed, a certain temperature and a certain thickness, which is used to block another air flow.

Depending on the state of processing of the airflow transmitted, the air curtain is divided into an unheated air curtain and a hot air curtain. The air curtain is divided into two types of installation, horizontal and vertical, and the types of heat sources include hot water, steam, electricity, etc.

air curtains are mainly used for outdoor doors which are frequently opened in public buildings and factories; or used to prevent smoke entering smoke-free areas during building fires; or used to prevent the entry of contaminated air and insects into the control area. In addition, it is also frequently used in sectors such as electronics, instrumentation, pharmacy, food, precision processing, chemistry, footwear, services and commerce.