How to Clean a Range Hood Filter (Degrease It in 15 Minutes)

The range hood filter traps grease from cooking, but it can only do its job if it's clean. A clogged filter makes the fan work harder, lets grease settle on your cabinets, and can even become a fire hazard.

What You'll Need

Boiling water
1/4 cup baking soda
Grease-cutting dish soap
A non-abrasive scrub brush
A sink or large tub

Step 1: Remove the Filter

Most metal mesh filters slide or pop out from the underside of the hood. Check your manual if you're not sure.

Step 2: Prepare the Soak

Plug the sink and fill it with boiling water. Carefully add the baking soda and a good squeeze of dish soap. Stir.

Step 3: Soak the Filter

Submerge the filter and let it soak for 15–20 minutes. You'll see grease start to float off.

Step 4: Scrub

Scrub gently with the brush, adding a little more dish soap if needed. Pay attention to corners.

Step 5: Rinse and Dry

Rinse with hot water and let the filter dry completely before putting it back.

Charcoal Filters Are Different

If your hood recirculates air instead of venting outside, it may use a charcoal filter. These can't be washed and need to be replaced, usually every few months. Check your manual.

Can You Use the Dishwasher?

Many metal filters are dishwasher-safe, but check your manual first. Some aluminum filters can discolor in the dishwasher.

How Often to Clean

Clean metal filters about once a month if you cook often, and every 2–3 months for light use.

FAQ

Why is my range hood still dripping grease? The filter may be saturated, or the hood itself may need degreasing. Wipe the inside of the hood with warm soapy water.

Do I need a degreaser? Dish soap and baking soda handle most filters. For very old buildup, a kitchen degreaser can help.