GE 5100 BTU MECHANICAL WINDOW AIR CONDITIONER: Designed to efficiently cool rooms up to 150 sq ft; easy install kit included so you can start cooling right away BEST FOR SMALL ROOMS: This AC unit is the right size for delivering 5100 BTU cooling capacity to smaller areas like bedrooms, studio apartments, guest rooms, and home offices LOW-NOISE OPERATION - Keep the cool air flowing with minimal disruption; ideal for nighttime use in bedrooms MAXIMUM COMFORT: Efficient with 2 cooling modes and 2 fan speeds to provide flexible and optimal room temperature; controls with 10 temperature settings make it easy to adjust cooling to your comfort EASY INSTALLATION: This AC has a fixed chassis and installs easily in a double hung window (size: W 21.875 - 36 x H 13.375) with included EZ Mount installation kit EASY CLEANING: This AC has a removable filter that can be easily removed for cleaning, so you can keep your unit performing at its best. For best results clean filter every 30 days