How to Deep Clean Range Hood Filters

Filters are the unsung heroes of your kitchen, silently catching the heavy grease and airborne particles that would otherwise coat your cabinetry and ceiling. Over time, these aluminum or stainless steel mesh screens become clogged, forcing your fan motor to work significantly harder while losing its ability to vent smoke effectively. Getting them back to a factory-clean state doesn't require harsh chemical sprays or expensive degreasers. By using heat and basic alkaline cleaners, you can break the molecular bond of the grease, restoring airflow and quiet operation to your kitchen ventilation system. Done well, your filters will look nearly new and your fan will pull air with renewed strength.

1. Release the Filters First. Locate the small spring-loaded latch on the edge of each filter. Gently depress the latch and pull the filter downward to release it from the hood track.
2. Mix Your Cleaning Solution. Fill your kitchen sink or a large basin with water as hot as your tap allows. Add half a cup of baking soda and a healthy squirt of heavy-duty dish soap, stirring until the water is sudsy.
3. Let Heat Do the Work. Place the filters into the solution, ensuring they are completely covered. Let them soak for 15 to 20 minutes to allow the heat and baking soda to emulsify the thick grease.
4. Attack the Sticky Spots. Use a non-abrasive nylon scrub brush to gently work away any remaining residue. Focus on the corners and the edges where grease tends to collect most heavily.
5. Flush Away the Residue. Rinse each filter under clean, hot running water to remove all traces of soap and dislodged debris. Ensure no suds remain in the interior mesh layers.
6. Reinstall Clean and Dry. Shake off excess water and wipe the frame with a microfiber cloth. Allow the filters to air dry completely before sliding them back into the hood tracks.