I,have modified our fresh air
intake vents to make it easier to service and use a 12×12 filter which you can buy at any hardware store. You have to purchase the vent cover from a heating and cooling company. You can't get them at a big box store . Remove the old filter cover and measure and mark the area, use a dry wall saw and a drywall knife to cut the opening. Allow 1/4 more area for the frame to fit. Use 1/2 × 1 wood for frame and to attach it on 1 side. Make it longer than the intended opening. Use the old screws and attach the frame to ceiling. Use smaller / shorter pieces to make the duct and inside frame to increase air flow. Install filter and cover. Use care when cutting ceiling. You don't want to make a mistake. You will have larger intake area and filter area. Easy access and clean /replace the filters. I replaced all 4. I have 3 cats. Which generates a lot of fur. Hope this helps someone. 😊
Linear Mode
