Air Doors, also known as air curtains, are innovative devices designed to create a barrier of air that separates two environments, typically between the indoors and outdoors, while maintaining unrestricted access. These systems are used to prevent the exchange of air, temperature, and contaminants between different spaces, ensuring that energy-efficient environments are maintained without compromising convenience or accessibility.

Air doors are commonly installed above doorways in commercial, industrial, and retail settings, including warehouses, supermarkets, and offices. They work by blowing a controlled stream of air across the opening to form a shield, effectively blocking out dust, insects, fumes, and cold or hot air. This helps maintain indoor comfort and temperature, reduces energy costs by minimizing the need for additional heating or cooling, and enhances the cleanliness of indoor spaces.