The Chigo 5400 BTU window air conditioner with mechanical controls is packed with industry-leading features that are ready to use right out of the box in a room up to 175 square feet. The innovative design makes this air conditioner easy to install and simple to operate. Choose from 3 fan speeds in cooling or fan-only modes for customized airflow. You can rest easy knowing that if there is a power interruption while you're asleep or away from home this air conditioner will automatically resume operation once power is restored. It’s like having eyes on your comfort at all times. Maintenance is made easy with the washable and reusable filter. Simply rinse every few weeks to keep your air conditioner at peak performance. Chigo air conditioners are built on quality and reliability you can trust.