Domakihub How to Clean a Range Hood Filter (and Keep It That Way)
Remove built-up grease in under 20 minutes using items you already have at home.
Reviewed by Domakihub cleaning pros · 2026-06-23 · 4 min read
A clogged range hood filter is one of the most overlooked chores in any kitchen — yet it has a direct impact on air quality, fire safety, and the smell of your home. The video above walks you through the process visually, while this guide lays out every step with timings and tips suited to Greek homes, holiday rentals, and hotel kitchens where heavy cooking is the norm. You do not need specialty products: baking soda, dish soap, and boiling water handle even years of accumulated grease.
Why the filter matters more than you think
Most range hood filters are made from aluminium mesh. Their job is to trap airborne grease before it coats your fan motor, your cabinetry, and eventually your ceiling. When the mesh is saturated, the hood stops drawing air efficiently — odours linger, and the layer of grease becomes a genuine fire hazard near an open flame.
In Greece, where frying in olive oil and slow-simmering stews are everyday cooking staples, filters load up faster than in kitchens with lighter usage. Rentals with back-to-back guests and hotel kitchens running full service need cleaning monthly; a typical household can get away with every two to three months.
What type of filter do you have?
The vast majority of domestic hoods sold in Greece use washable aluminium mesh filters. These are the silver, accordion-style panels you slide or clip out from the underside of the hood — the method below is designed for them.
If your hood has a charcoal (carbon) filter — common in recirculating models that vent back into the room rather than outside — those cannot be washed. They must be replaced on a schedule (typically every three to six months). Check your hood's manual or look for a label on the filter itself: aluminium mesh is silver and rigid; carbon filters are black and feel like dense foam or pellets.
How to clean an aluminium mesh range hood filter
- 1
Remove the filter
Turn the hob off and let everything cool completely. Slide or unclip the filter from the hood — most models release with a small latch or a quarter-turn. If it has not been cleaned in a long time, hold it over the sink as you pull it out to catch any drips of liquid grease.
- 2
Make a degreasing soak
Fill your largest pot or your kitchen sink with very hot water — the hotter the better, as heat is what breaks grease down. Add two generous squirts of dish soap (a grease-cutting formula works best) and two to three tablespoons of baking soda. Stir briefly; the mixture will fizz slightly. This alkaline solution is what loosens baked-on cooking residue without damaging the aluminium.
- 3
Soak for 10 to 15 minutes
Submerge the filter fully and leave it to soak. For a lightly dirty filter, ten minutes is enough. For a filter that has not been cleaned in several months, give it a full fifteen minutes or add a second round of hot water if the first cools down. You will see the water turn yellow or brown as grease lifts off — that is exactly what you want.
- 4
Scrub, rinse, and inspect
Use a soft-bristle brush (an old dish brush or a toothbrush for the corners) to scrub both sides of the mesh with light pressure. Avoid steel wool or abrasive pads, which can tear the mesh. Rinse under running hot water. Hold the filter up to a light — if you can see through the mesh clearly, it is clean. If not, repeat the soak for another five minutes and scrub again.
- 5
Dry completely before reinserting
Shake off excess water and stand the filter upright on a clean towel, or prop it against the dish rack. It must be fully dry before you clip it back in — any moisture sitting against the motor housing can cause rust or odour over time. In a warm Greek kitchen this usually takes 30 to 60 minutes. Once dry, clip it back into place and run the hood for a minute to confirm normal airflow.
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FAQ
- Can I put the range hood filter in the dishwasher?
- Many aluminium mesh filters are technically dishwasher-safe, but repeated high-temperature cycles can dull the finish and sometimes warp the frame over time. Hand-soaking in hot water with baking soda is just as effective and gentler on the filter. If you do use the dishwasher, run it on a hot cycle without other dishes, and skip the heated dry setting.
- How often should I clean the filter in a holiday rental?
- In a rental with frequent guest turnover, aim to clean the filter every four to six weeks during the high season. Guests cook unpredictably and at higher intensity than the average household, so filters load up quickly. A quick visual check between changeovers takes seconds: if the mesh looks shiny and grey, it is fine; if it looks dark or feels sticky, clean it immediately.
- The filter is still greasy after two rounds of soaking — what now?
- For heavily neglected filters, add a full half-cup of baking soda to the soak and use the hottest water your tap produces, or heat the water in a large pot on the hob. A dedicated kitchen degreaser spray (available at most supermarkets in Greece) applied directly to the mesh for five minutes before soaking also accelerates the process. If the mesh is physically deformed or the frame is cracked, it is time to replace the filter — your hood manufacturer's website or any hardware store (χαρδουεράδικο) will stock a compatible size.