This window air conditioner (which can also be used as an exhaust fan) is designed to fit into most double-hung and slider window types. Also included is an adjustable extender screen and bonus extender panel which both help to secure the fan into larger windows.
The extended length of the extender panel complements the adjustable extender screen material for added stability giving you excellent ventilation. The design small window fan is simple, requiring little setup for an easy installation. The best window fan is great for areas with natural or artificial light that may inhibit natural airflow.