Keep your home comfortable all year long and help save on energy costs with the Duck® Brand Air Deflector. Designed for central forced air heating and cooling vents, this air deflector pushes air back into the living space from vents blocked under furniture. To use, adjust the Duck® Air Deflector to fit the vent and position magnets to keep the unit in place. If wall mounted, turn the deflector downward during cooler months to keep warm air down and upwards during warmer months for improved cooling.