How to Clean a Greasy Range Hood Filter in 15 Minutes

The Secret to a Grease-Free Kitchen Exhaust

If your kitchen still smells like last night's fish dinner, or if your stove fan sounds louder than usual, your range hood filter is likely clogged with grease and dust. Over time, these metal mesh filters trap airborne grease, reducing airflow and creating a serious fire hazard. Fortunately, you do not need expensive chemicals or hours of scrubbing to get them sparkling clean again. With just boiling water, baking soda, and dish soap, you can restore your filter in under 15 minutes.

What You Will Need

• Boiling water (enough to submerge your filters)
• Baking soda (1/2 cup)
• De-greasing dish soap (like Dawn, 1-2 tablespoons)
• A sink or large heat-safe tub
• A non-abrasive scrub brush or sponge
• A clean dish towel

Step 1: Remove the Filters

Most range hood filters are located on the underside of the hood, directly above your stove. Look for a small metal latch or finger loop. Push the latch inward or slide the filter backward, then tilt it down to slide it out. They should pop out easily without the need for tools.

Step 2: Prepare the Ultimate De-Greasing Bath

Plug your sink or place your heat-safe tub on a flat surface. Squirt a generous amount of de-greasing dish soap into the bottom. Next, slowly pour boiling water directly into the sink. The hotter the water, the more effectively it will melt the solidified grease. Carefully stir in 1/2 cup of baking soda. Note: The baking soda will fizz vigorously when it hits the hot water and soap, which is exactly what you want to help break up the grime.

Step 3: Soak and Let the Chemistry Work

Submerge your greasy filters completely into the hot, bubbly water. If your sink isn't quite large enough to cover the entire filter, submerge one half first, let it soak, and then flip it over to do the other half. Let the filters soak undisturbed for 10 minutes. You will actually see the grease begin to float to the water's surface as the heat, soap, and baking soda dissolve the buildup.

Step 4: Give It a Quick Brush and Rinse

After soaking, take your non-abrasive scrub brush or sponge and gently scrub the mesh. Because the soak did the heavy lifting, the remaining grease should wipe away effortlessly. Avoid using steel wool or harsh wire brushes, as these can damage the delicate aluminum mesh. Once clean, rinse the filters thoroughly under warm running water to remove all soap and grease residue.

Step 5: Dry and Reinstall

Shake off any excess water and prop the filters upright on a clean dish towel. Let them air dry completely before popping them back into the range hood. Operating the fan with wet filters can damage the motor. Repeat this quick process once a month to keep your kitchen smelling fresh and your exhaust fan running efficiently!