## Many users believe that closing the door of the room when opening the air conditioner will help save electricity, but this practice is not effective and counterproductive. Consumers today are often looking for small ways to cut down on electricity consumption during hot summer days. However, some energy saving tips may not be all that good. An example is the recommendation that when using an air conditioner, we must close the door tightly to ensure that the room is cooled quickly and does not damage the machine as well as save electricity. In fact, closing the door can help cool the air, but it’s not really good for health. People who stay in air-conditioned rooms for a long time often have difficulty breathing and headaches. Because, closing the door of the room when opening the air conditioner can affect the user’s health. The air in a closed air-conditioned room is usually 2-5 times more toxic than the outdoor air, especially when the air conditioner is not cleaned regularly. This will cause serious air pollution in the room, affecting the health of users, especially the elderly and young children. Experts at AirOasis recommend that users should combine opening windows, ventilation, doors…. to catch fresh air when possible. This will help the air in the room be “refreshed” and avoid affecting both the mental and health of consumers. Users can choose to install a small capacity ventilation fan in the room to support the air circulation process. The air conditioner itself will suck hot air in the room, blowing it through the cooling coil, so the amount of air in the room needs to be circulated regularly to filter dust. In addition, experts also recommend that users should not stay in an air-conditioned room continuously for more than 4 hours. Therefore, about 2-3 hours, users should go out at normal temperature to change the air and adapt to the outside temperature, to avoid thermal shock.