How to Clean Greasy Range Hood Filters

Grease is the natural byproduct of a well-used kitchen, but when it accumulates in your range hood filter, it does more than just look unsightly. Over time, that buildup acts like a sponge for airborne debris and creates a genuine fire hazard by obstructing the airflow your ventilation system needs to function safely. Getting these filters back to a 'like-new' state doesn't require a professional cleaner or harsh chemicals that smell like a lab. With the right combination of heat and alkalinity, you can break the molecular bond of the grease and restore the metal to its original, shiny state in under an hour. When done well, the water will run clear, and you will see the light through every individual hole in the mesh.

1. Pop Out the Filters. Locate the small spring-loaded latch on the edge of each filter panel. Gently pull the latch and tilt the filter downward to release it from the hood housing.
2. Mix Your Cleaning Solution. Fill your kitchen sink or a deep basin with water as hot as your tap can provide. Add a generous half-cup of baking soda and a healthy squirt of high-strength grease-cutting dish soap.
3. Let Time Do the Work. Submerge the filters completely in the hot soapy mixture. Let them sit undisturbed for 15 to 20 minutes to allow the solution to soften the hardened grease deposits.
4. Brush Away the Buildup. Using a non-abrasive nylon scrub brush, gently scrub the mesh in a circular motion. Focus on the areas where the grease appears discolored or tacky.
5. Flush Out All Residue. Remove the filters and rinse them under a steady stream of hot water. Ensure you flush both the front and back sides to remove all soapy residue.
6. Dry and Snap Back. Shake off excess water and wipe the frames with a microfiber cloth. Air dry the filters fully before snapping them back into the range hood.