Air Conditioning Cover: This dust cover is suitable for standard window air conditioning unit, protecting the air conditioning external unit from rain, snow, wind, and harsh weather, thereby extending its service life 3 Layer Structure: The outer layer is 420D water proof Oxford cloth, filled with insulation layer in the middle, and the inner layer is antifreeze aluminum foil layer, providing comprehensive guard for the AC external unit Double Strap Design: The winter window AC cover features two adjustable straps and is equipped with snap fasteners, making it difficult to fall off due to wind, convenient to put on and take off 4、Fine Processing: Each seam joint of the cover is treated with high temperature adhesive to ensure water and wind proof, prevent the air conditioning from being invaded by sunlight and dust, and keep the room warm in winter Cuttable Bottom: The bottom of the AC unit cover adopts a cuttable design, which is compatible with the window air conditioning unit