Clean a Range Hood Filter
Soak your range hood filter in hot water with dish soap and baking soda for 15-20 minutes, scrub with a soft brush, rinse thoroughly, and let it dry completely before reinstalling.
- Difficulty
- Beginner
- Time
- 1-2 Hours
- Cost
- $2-$5
- Tools
- Soft-bristle brush, Non-scratch sponge, Large sink or roasting pan, Clean towel
- Permit required
- No
- Contractor recommended
- No
- You will need
- Dish soap (1/4 cup), Baking soda (1/4 cup), White vinegar (optional), Large sink or roasting pan, Soft-bristle brush or sponge, Hot water, Clean towel
Materials
- 1/4 cup Dish soap (any brand) (Regular dish soap works fine; no need for special degreasers) — $0.25
- 1/4 cup Baking soda (Standard baking soda from the baking aisle) — $0.50
- 1/4 cup White vinegar (optional) (Only needed for extremely greasy filters) — $0.75
- Enough to submerge filter Hot water (Use the hottest your tap produces) — $0.10
Step by step
Pop Out the Filter
Look under your range hood for the metal filter panels. Most slide or pop out with a simple push on a tab or latch. Pull the filter straight down or toward you, depending on your hood model. If you've never removed these before, they may resist slightly from built-up grease acting as an adhesive.
Tip: Take a photo of how the filter sits before removal so you know exactly how it goes back in.Mix the Degreaser Bath
Fill your sink or a large roasting pan with the hottest water your tap produces. Add a quarter cup of dish soap and a quarter cup of baking soda, then swirl it around to dissolve. The combination cuts grease better than either alone, and the baking soda helps neutralize the burnt smell that accumulates in these filters.
Tip: If your filter is exceptionally greasy, add a splash of white vinegar to boost the degreasing power.Let the Grease Release
Place the filter in the solution, making sure it's fully submerged. Let it soak for 15-20 minutes. You'll see grease lifting off and clouding the water almost immediately. For heavily soiled filters that haven't been cleaned in months, extend the soak to 30 minutes and refresh the solution halfway through.
Tip: Use this soak time to wipe down the underside of the range hood itself with the same solution.Brush Away the Buildup
Pull the filter from the soak and scrub both sides with a soft-bristle brush or non-scratch sponge. Work in the direction of the mesh pattern, not against it. Pay extra attention to the corners and frame edges where grease collects thickest. The filter should feel noticeably lighter as you remove the buildup.
Tip: An old toothbrush works perfectly for getting into the tight corners of the frame.Flush Out the Film
Rinse the filter under hot running water, again working with the direction of the mesh. Hold it up to the light to check for remaining grease spots. Keep rinsing until the water runs clear and you can see light passing evenly through all sections of the mesh.
Tip: If grease spots remain visible, dip the filter back in the solution for another five minutes rather than scrubbing harder.Air Dry Completely
Shake off excess water and stand the filter upright against your dish rack or on a towel. Let it air dry completely, which takes about an hour. You can also dry it with a clean towel if you're in a hurry, but make sure no moisture remains in the mesh layers before reinstalling.
Tip: Never reinstall a damp filter as trapped moisture can cause the metal to corrode over time.Slot It Back In
Slide the dry filter back into its slots in the range hood. It should click or settle into place easily. Test that it's secure by giving it a gentle tug. Turn on your range hood and confirm the airflow feels stronger now that the filter isn't clogged.
Tip: Mark your calendar to clean the filter again in four to six weeks depending on how often you cook.
Questions people ask
Can I put my range hood filter in the dishwasher?
Most metal mesh filters are dishwasher-safe, but check your hood's manual first. Place it on the bottom rack and run a heavy cycle with your regular detergent. The dishwasher works well for maintenance cleaning but may not remove heavy grease buildup as effectively as hand soaking.
How often should I clean my range hood filter?
Clean it every four to six weeks if you cook daily, every two to three months if you cook occasionally. If you do a lot of frying or high-heat cooking, clean it monthly. The filter should never feel sticky to the touch or look visibly dark with grease.
What if my range hood has charcoal filters instead of metal mesh?
Charcoal filters are not cleanable and must be replaced every three to six months depending on use. They're designed for ductless hoods that recirculate air rather than venting outside. Check your hood model to confirm which type you have.
Troubleshooting
Filter still looks greasy after first cleaning
Run it through a second soak cycle with fresh solution, or try running it through the dishwasher on the heavy cycle if it's dishwasher-safe metal.
Filter won't come out of the hood
The grease may have sealed it in place; spray the edges with degreaser, wait five minutes, then try again while wearing rubber gloves for better grip.
Water stays greasy and cloudy even during rinsing
The mesh is likely saturated with old grease; repeat the entire soak process with fresh solution before attempting to rinse again.
Filter smells even after cleaning
Soak it for 30 minutes in a solution of equal parts white vinegar and water to neutralize odors, then rinse and dry thoroughly.
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