Clean a Range Hood Filter

Grease builds on range hood filters in layers you can't see until you pull one out and hold it to the light. A clean filter keeps your kitchen air moving properly and prevents that sticky film from spreading to your cabinets and walls. Most people never clean these filters, running them for years until the hood stops working effectively. A thorough cleaning every month or two takes twenty minutes and costs almost nothing, and it's the difference between a hood that works and one that just makes noise while grease recirculates through your kitchen.

1. 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.
2. 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.
3. 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.
4. 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.
5. 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.
6. 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.
7. 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.