Automatic Door help to save energy and money by lowering yearly heating and cooling expenditures. Doors open only when activated and close automatically to prevent doors from being left open. They also keep outside air as well as dust out and prevent air conditioning from escaping. Automatic doors with hands-free operation are ideal for hospitals and food processing plants where hygiene is critical. In addition, by boosting the air pressure in the room, an Automatic Door with an air-tight function may also prevent dust and filth from entering, making it ideal for operating rooms and other regulated conditions.