Note: 1.Be sure to measure your ac unit and selet right size. 2.Do not use an air conditioning cover when the air conditioner is turned on. 3.Check and make sure there are no sharp objects on the unit before putting the cover on 4.It is very easy to clear the surface dust, just wipe it with water,then dry it,do not use strong detergent or put it in the washing machine, it will damage the surface waterproof coating,and reduce the service life; 5.Easy to fold, can be stored when not in use.