Simple economic and reliable Because there are no separate indoor and outdoor units its easier to install a window wall cooling only model. And because its a Westinghouse you know it is reliable and built to last. Compact design The super compact design means that window wall cooling only air conditioners are discreet and unobtrusive in your home. They are also perfect for cooling smaller family homes and space-restricted areas. Control from your armchair The remote-control unit lets you conveniently control all functions. Fresh air delivery The fresh air return provides additional ventilation to your room and can also assist in humidity control. The easy-to-service dust filter removes dust and other larger airborne particles for cleaner air. Features - All-in-One Design - All-in-One Design - Remote Control - Fresh Air Return