Product FAQs

Window Fans

Can I leave my window fan in place during rain?

The motors in window fans are rain-resistant, and may safely remain in your window when it's raining. We do suggest removal from the window with heavy storm activity as wind driven rain can blow into the electrical areas of the fan. In the advent, please unplug the fan and remove from the window and allow the fan to dry.

What do I do if my window fan gets wet?

Although Holmes® window fans are resistant to light rain, if your fan gets wet, we recommend you to unplug it and let it dry before plugging it back in for use.

What is a window fan?

Holmes®' window fans are designed specifically to fit virtually all windows. Holmes® window fans have special features for this purpose, such as extender panels and windowsill holders. Installation of our window fans is designed to be quick and easy, with no tools required. Options available on window fans include the following: electric reversibility for air intake, air exhaust, or even air exchange; thermostats; digital thermostats; temperature displays; and sleep settings for quieter performance at night. Thermostats are particularly useful on window fans, as most people tend to use this type of fan in their bedroom. You can set the thermostat to your desired comfort level. The thermostat will then automatically turn the window fan on or off, in order to maintain your set temperature. This feature is especially welcome in the fall or early spring. As the night air cools down, your fan will turn off, and then turn on again as the morning sun begins to warm your room.

How do I clean my window fan?

First unplug the fan from the outlet. The outside of the fan can be wiped down with a damp cloth. Use a vacuum cleaner with a dust brush attachment or a can of compressed air to remove dust from any hard to reach areas.

What are the differences between air intake, air exhaust, and air exchange on my window fan?

Air intake describes the fan pulling air from the outside into the room. Air exhaust describes the fan pushing air from the room to the outside. Air exchange describes one fan blade pulling air into the room, while the other fan blade pushes air out, simultaneously.

Can I install my window fan vertically in the window?

Window fans can be installed either vertically or horizontally. Please note when installing vertically, the internal adjustable extender panel must be located on the top of the window fan and never on the bottom.

How do Slider Safe® extender panels help fit a fan into a window?

Extender panels can be used to fit window fans into both horizontal and vertical positions. They slide into the right side of your window fans, to allow for a tight fit in your window. Holmes® window fans come with patented Slider Safe® extender panels, which are designed to provide stability in the vertical position used with a slider window.