Remove the screws that hold the vent cover in place, using a screwdriver, and set them aside. Gently pull the cover away from the wall. Some vent covers are held in by clips. If this is the case, lift or press the clip at the top and pull the vent cover up and out to release it from the holders at its base.

How to Remove the Dash on a Ford Focus

1. Disconnect the negative battery cable and allow the vehicle to sit for 10 to 15 minutes.
2. Open the glove box door and squeeze the outer panels to release and remove the door.
3. Use the flat-head screwdriver to carefully pry out one corner of the passenger airbag trim cover.

Removing the vent is the best way to efficiently clean the slats.

1. Lay a large dropcloth underneath the ceiling vent.
2. Place a ladder on the dropcloth.
3. Loosen the screws holding the vent to the ceiling with a screwdriver.
4. Place your hand against the middle of the vent.

Do not put filters in your supply vents. Your AC system should have a proper fitting filter on the return side. By placing a good fitting, high quality filter on the return vent, you will remove particles from the air before they can enter the AC system.

The Case for a Return Duct Filter Regular maintenance is certainly recommended, but adding a return air filter can help to block some of this incoming debris and ensure that the air coming in is clean. Clean air means a clean system.

The Average Engine Air Filter Replacement Cost Is $20 to $85, Depending on if You Go to the Mechanic or DIY. This is one of the easiest maintenance jobs you can do yourself. Engine air filters are easily accessible under the hood and usually require no tools at all to replace.

The engine air filter should be replaced between 15,000 and 30,000 miles, depending on driving conditions. If you have a turbocharged engine or often drive on unpaved roads, it needs to be changed more often. It doesn’t take long at all — one to five minutes, even if it’s your first time.