Select a paint that has primer included in the can. [3] X Research source

Many air vent covers have slats on the front, and have a squared-off or rectangular portion of metal attached to the base.

You can find breathing masks at your local hardware store. As an extra precaution, invest in a breathing mask to protect your nose and mouth.

Be sure to paint over the screws as well.

Depending on the spray paint, your vent might be dried in 1-2 hours.

Don’t cover your vents with thick, clunky furniture that will block the airflow in your home. [12] X Research source

You don’t have to purchase a product that’s marketed as an air vent cover. Instead, look for a framed print or pattern that covers the vent while allowing air to go through.