Abstract: An adjustable screen apparatus for a window air conditioner. A framework is attached to and extends from an air conditioning unit to fill the space between the air conditioner and the window frame. The framework has three channels in the top frame member and the bottom frame member. Rods affixed to the top and bottom of the air conditioner ride in the center channel and pilot the apparatus as the apparatus is extended and retracted over and under the top and bottom of the air conditioner unit. An extensible louver fits in the inner channels while an adjustable screen fits in the outer channels. The louver can be moved from an open to a closed position. In the position that the louver is open, air can flow through the screen past the air conditioner unit.