Absolutely must turn on this switch on your air conditioner

The fourth tip: Clean the air conditioner filter regularly.
Generally, air conditioner filters should be checked about once a month. If there is too much dust inside, it will clog the mesh, making the air conditioner work harder, causing slow heat exchange, and preventing heat from being dissipated. This will increase the power consumption of the air conditioner and also have a certain impact on our respiratory health.