When the air conditioner is cooling, the ventilation of the indoor unit is not smooth (the wind speed is fast or slow), and the wind is not too cold. What is the reason for this?

If the filter screen of the air conditioner is not cleaned in time, when the mesh is blocked, the ventilation will be blocked, the air volume will be reduced, and the cooling rate will be slow. It is recommended that users clean the filter screen at least once every two months.