Honeywell 7,100 BTU (10,000 BTU ASHRAE) Portable Air Conditioner with Dehumidifier & Fan, HJ0CESWK7. This 3-in-1 unit helps you cover all the bases with AC cooling, a multi-speed fan, and a dehumidifier for indoor spaces up to 450 square feet. Designed for portability, this unit will save you money on energy costs by cooling only the rooms you are using instead of the whole house. This compact unit is one of the quietest air conditioners in its class and comes with smooth-gliding wheels that make sliding it from room-to-room a breeze. It also comes fully packed with an adjustable window kit and dehumidifier drain tube, for easy installation.