What is an Air Vent Diverter/ Air Deflector?
Put simply, it is small plastic or metal cover that you attach to your existing heat/cooling exhaust vents to alter the direction of the air to flow in a certain direction.
Examples. For small vents the Air deflectors look something like this:
For Long Vents they look something like this:
For Square Ceiling Vents they look something like this:
Commercial Size Air Diverters look like this:
Commercial 2 ft x 2 ft look like this: