Low operating costs of portable fans - Portable fans are among the least expensive fans to purchase and have very low operating costs, using less than 200 watts of power. At 8 cents per kilowatt hour, a portable fan can run for 24 hours for less than 40 cents.

Directing airflow of portable fans - It is fairly easy to direct the airflow of portable fans by repositioning the fan. Some fans oscillate back and forth, giving a broader coverage of the room.