Cool Living CL-WAC5 Window Mount Air Conditioner for $109.99 shipped. Here is a screenshot for reference. The air conditioner is rated at 5,000 BTU that can cool off rooms up to 150 sq. ft and it features 3 cool speeds, 3 fan speeds, simple manual controls, side slide out filter access for cleaning and replacement, multi-directional vent, and has eco-friendly R410A refrigerant. Most places have it for about $139.