Q. What are the types of window fans?

Answer

There are three basic types of window fans;Standard frame: A window fan like this one is made to fit inside the window between the sash and the sill. A window fan in contrast to a box fan requires mounting gear for installation and typically features moveable panels to fill the space on each side of the fan.Floor: A desk fan is less powerful than a window fan yet it may be placed near a window and does not require any kind of installation because of its base.Desk: The taller design and broader blades of these fans allow them to push more air through narrow openings like screen doors and small windows.