How to Deep Clean Your Range Hood Filter

G**rease** accumulation on range hood filters is the silent enemy of kitchen ventilation. Over time, that sticky, yellow residue clogs the mesh pores, forcing your range hood fan to work harder while pulling air less efficiently, which effectively turns your vent into a glorified noise machine rather than a functional air purifier. Cleaning these filters isn't about scrubbing until your fingers hurt; it's about chemistry. By utilizing heat and the right alkaline agents, you can liquefy years of solidified kitchen fat in a single session. Done well, your filter will look brand new, your fan will run quieter, and your kitchen will smell noticeably fresher after cooking.

1. Release and Slide Free. Locate the spring-loaded latch on your range hood filter and gently release it. Slide the filter out carefully, being mindful that it may be dripping with old grease.
2. Mix the Degreasing Solution. Fill a deep sink or a large pot with water and bring it to a boil. Remove from heat and stir in half a cup of baking soda and a generous squirt of high-strength liquid dish soap until dissolved.
3. Let Heat Break Down Grease. Place the greasy filter into the hot solution and ensure it is completely underwater. Let it soak for at least 15 to 20 minutes to allow the heat to soften the fats.
4. Attack the Mesh Aggressively. After the soak, use a stiff-bristled scrub brush to work the remaining residue out of the mesh holes. Work in circular motions rather than straight lines to reach deeper into the metal weave.
5. Flush Until Water Runs Clear. Rinse the filter under hot running water to remove all traces of soap and dislodged grease. Ensure the water runs clear through the mesh.
6. Reinstall Bone-Dry Filter. Pat the filter dry with a lint-free cloth and let it air dry completely in a dish rack. Once bone dry, slide it back into the range hood housing until it clicks into place.