How much air does a 20-inch box fan move?

A 20-inch box fan moves a large volume of air and is meant for whole-room circulation or window use. On its top speed it produces a strong breeze across a room. Expect less focused airflow than a small high-velocity fan.

Box fans of this type are typically louder than tower or pedestal fans, especially on the higher speeds. The lowest setting is the quietest. It is best suited to rooms where some fan noise is acceptable.

Can it be used in a window?

Yes. The flat box shape sits in most double-hung windows, and the fan can pull air in or push it out depending on which way it faces. Check that the window opening is wide enough for the 20-inch frame.

Does it oscillate or have a remote?

No. It has a rotary switch with three speeds and no oscillation, timer or remote. Airflow is directed by aiming the whole unit.

Unplug it first, then wipe the grille and blades with a damp cloth or use a vacuum brush attachment. Dust buildup on the blades reduces airflow over time.