Air curtains, also called air doors, are used as an effective method of controlling the entry and exit rates of people inside a building. Air curtains are installed above an air door to create an air tight seal so that contaminated air and harmful debris are kept out and conditioned air is in. A properly installed and properly functioning air curtain will save your company a lot of money by reducing the level of heat lost by open windows. You can find some of the best commercial and residential air curtains from Refresh fans. They have some of the best inventory for commercial and residential fans. The following are the top advantages of air curtains: ![template-1200-x-600-29.png](https://cdn.steemitimages.com/DQmXBq7RvUyY7gLPeHnQu4aaRVDgvGTzA613ttxHZuvCoCr/template-1200-x-600-29.png) Improved Energy Efficiency: Most air curtains and doors have been designed with an integrated air tight seal, which greatly reduces the amount of air movement. This results in improved energy efficiency and reduces the operating costs of cooling and heating systems. This also reduces the amount of excess heat experienced by the structure during summer. It also ensures that warm air coming in from outside is kept inside and cold air from the outside is passed through the doors or windows. Reduced Energy Loss: Even when the external temperatures are very comfortable, the rate at which heat escapes from the structure is very high. This is because of the physical door design. During the summer time, there is usually a large amount of outside air flowing into the building. Because of this, the cooling effects of the heat are not fully absorbed by the structure, and warm air is escaping as well. This leads to a large amount of energy loss through the cooling or heating system. ![image.png](https://cdn.steemitimages.com/DQmTiE2akTiLJmyCgZsFXsrG1PbBY6nvGe1HhQ2Y8mZv2FS/image.png) Less Heat Transfer: Another advantage of air curtains is their ability to prevent heat transfer. When an air curtain is installed, the rate at which heat escapes is slowed down. An air curtain does not allow hot air from outside to enter inside the building. As a result, air conditioning systems do not need to operate at maximum capacity to keep the temperature comfortable. They run more efficiently and costs go down. More Efficient Operation: Air curtains are often used in conjunction with heaters. The air curtains help to regulate the temperature by slowing the rate at which air enters and leaves the building. This allows for more efficient operation of cooling and heating systems. ![image.png](https://cdn.steemitimages.com/DQmPPUqpnqxj69hfjFvkg7LKeMqYXtdPnNsLtTQrEEeA3kz/image.png) More Functionality: The most common reason that air curtains are often used is to help keep the internal areas of the structure cool. Some houses, for example, have a requirement for cooling fans and air conditioners. These fans are often used inside the house, especially in the winter months. Air curtains can act as air doors, allowing cool air from the outside to enter the house. This can increase the functionality of air conditioning and heating systems. Physical Door Lock: A physical door lock is another option that an air curtain may be used for. A physical door lock is installed on the outer perimeter of an air curtain to prevent unwanted entry. These locks can be controlled by thermostat controls or electronic keypads. An air curtain that requires a door lock can be installed over an existing door, with the addition of a weather stripping to protect the finish of the door. This type of door lock is effective at preventing forced entry, but not very effective at keeping the outside air clean. Combined Spaces: Air curtains can be used in combination with other cooling and heating equipment. You can use an air curtain in your bedroom to keep the outside air from entering your personal storage areas and use the same system to keep the inside air clean. Many air conditioners come with built-in air curtains, and it is easy to automate them to turn on and off at specified times during the day and night. This can save you time by eliminating the need to manually open the curtains each time you want to use them.