Your family's comfort begins with Keystone: Perfect for rooms up to 450 square feet, the Keystone portable air conditioner maximizes comfort by providing cool air and removing humidity. Ideal for a variety of spaces: As a reliable solution for reducing dampness and humidity, the unit is an excellent choice for bedrooms, bathrooms, attics, dorm rooms, basements, and more. Dehumidifies and cools: By removing 2.95 pints of moisture from the air per hour, you'll enjoy a cool and comfortable indoor environment with no dampness. Customizable settings for your comfort: Electronic controls provide 3 speeds, a programmable timer, and 3 operating modes (cool, fan, and dry), to keep you comfortable. Enjoy a good night's rest with sleep function: Sleep function gradually increases the temperature to provide you with comfortable air while you sleep. Easy portability through your home: With integrated side handles and caster wheels, you can easily transport to fit your needs.