How to Replace a Range Hood Filter

Range hood filters are the forgotten workhorses of the kitchen. They trap grease and cooking particles before they coat your cabinets and walls, but they clog fast and lose suction when clogged. A dirty filter doesn't just reduce airflow—it makes your hood work harder, run louder, and eventually fail. Replacing one is so simple that most people delay it out of pure habit, then wonder why their kitchen smells like last week's dinner. The right filter takes five minutes to swap and costs between fifteen and forty dollars. It's one of those maintenance tasks that feels pointless until you do it and suddenly your hood pulls like new.

1. Kill the Power First. Flip the switch to off, or if your hood has a timer function, make sure it's not running. Let any residual moisture or heat dissipate for a moment. This is a safe habit even though the filter itself isn't powered.
2. Find Your Filter Type. Stand in front of your range hood and look at the underside. You'll see either a metal frame holding a rectangular filter, or a cylindrical filter barrel depending on your hood model. Most residential hoods use a flat, accordion-style filter mounted in a frame. Identify whether your filter uses clips on the sides, a spring-loaded push-up mechanism, or a twist-lock system.
3. Disengage the Clips. If your filter has metal clips on either side (the most common design), push up gently on the filter frame while locating the clips. Usually there's a clip on each side of the frame. Pull or push these clips outward and downward simultaneously. The filter should drop free or slide out slightly. Once the clips clear, pull the filter straight down and away from the hood.
4. Twist and Slide Free. Some hood models use a twist-lock mechanism where the filter frame has tabs that rotate into slots. Grip the filter frame firmly and rotate it counterclockwise about a quarter turn. You'll feel the tabs clear the slots. Once rotated, pull the filter straight down and out.
5. Release the Spring Tension. Some hoods use a push-up mechanism where a spring holds the filter in place. Look for a small tab or lever on one side of the filter frame. Press or pull this tab while pushing the filter up slightly—the spring will release and the filter will come free. Slide it out horizontally or drop it down depending on your hood's design.
6. Wipe Down the Hood. With the filter out, take thirty seconds to look inside the hood. You'll likely see grease accumulation on the metal surfaces and inside the duct entrance. Use a paper towel or damp cloth to wipe down the interior surfaces, the frame edges, and the underside of the hood itself. This prevents old grease from transferring to your new filter and keeps your hood cleaner longer.
7. Get the Right Filter. Take the old filter with you to the hardware store or measure it precisely. Write down the dimensions in inches (typically 10.75 × 19.25 × 5 or 12 × 19 × 5 for standard hoods). Note your hood's brand and model if you have it. Bring this information to the store. Match the height and accordion-fold pattern of the new filter to the old one—they must be identical to mount properly.
8. Slide in the New Filter. Unpack the new filter and inspect it for damage in transit. Hold it in both hands and align it with the mounting frame inside the hood. Most filters are directional—check for an arrow printed on the accordion folds that indicates airflow direction. This arrow should point downward (toward the hood, not toward the duct). Slide or position the filter into the frame until it sits flush and level.
9. Lock Down the Clips. Once the new filter is seated in the frame, you'll re-engage the clips. Push up gently on the filter until you hear or feel a click—the clips should snap down over the top edge of the filter frame. Verify that both clips are fully engaged by gently tugging down on the filter; it should not move.
10. Rotate Into Place. Align the tabs on the filter frame with the slots inside the hood. Push the filter up into position, then rotate it clockwise about a quarter turn. You'll feel resistance as the tabs catch the slots. Once fully rotated, gently tug downward on the filter to confirm it's locked.
11. Engage the Spring Lock. Slide the new filter into the frame horizontally until it's fully seated. Press the filter up gently until the spring mechanism engages and holds it in place. You should hear a soft click or feel the spring tension lock in. Verify that the filter is level and centered in the frame.
12. Verify Strong Suction. Turn the range hood back on and listen for a change in sound. A fresh filter should pull noticeably quieter and feel like it has stronger suction. Run it for one minute at full speed to confirm normal operation. If the hood is louder or pulls weakly, turn it off immediately and recheck the filter installation—it may be backward or misaligned.
13. Mark Your Calendar. Write the current date on a piece of painter's tape and stick it to the side of your hood. Set a phone reminder for three months out—most residential filters need replacing every three to six months depending on cooking frequency. The tape acts as a visual reminder every time you look at your hood.