How to Clean Range Hood Filters

Why Range Hood Filter Cleaning Matters

Range hood filters trap cooking grease, smoke, and airborne particles before they circulate through your kitchen and home. Over time, grease saturates the filter mesh, reducing airflow and suction dramatically — a clogged filter can reduce your range hood's effectiveness by 50% or more. Worse, heavily grease-laden filters are a fire hazard. Regular cleaning keeps your range hood working at full capacity and your kitchen safer.

Types of Range Hood Filters

• Metal mesh / baffle filters: Aluminum or stainless steel, washable and reusable. Most common in modern range hoods.
• Charcoal / carbon filters: Used in ductless (recirculating) range hoods. Not washable — must be replaced.

This guide covers metal mesh filters. For charcoal filters, see our dedicated guide.

What You'll Need

• Zep Heavy-Duty Citrus Degreaser Concentrate — restaurant-grade, cuts through baked-on range hood grease
• Dawn Platinum Dish Soap — for lighter buildup and finishing rinse
• Rubber cleaning gloves
• Large pot or sink basin — for soaking
• Stiff-bristle brush or old toothbrush
• Boiling water
• Baking soda (optional) — enhances degreasing

How to Remove Range Hood Filters

1. Turn off the range hood and allow it to cool completely.
2. Most metal mesh filters slide out or unclip from the underside of the hood — check your model's manual if unsure.
3. Handle with gloves — the filters will be coated in grease.

Method 1: Boiling Water + Dish Soap + Baking Soda (Light to Moderate Grease)

1. Place the filter in a large sink or basin.
2. Boil a full kettle of water.
3. Pour boiling water over the filter.
4. Add a generous squirt of dish soap and ¼ cup of baking soda.
5. Let soak for 15–20 minutes — the hot water melts the grease; the soap and baking soda emulsify it.
6. Scrub with a stiff brush, paying attention to the mesh channels.
7. Rinse thoroughly under hot running water.
8. Dry completely before reinstalling.

Method 2: Zep Citrus Degreaser Soak (Heavy Grease Buildup)

For filters with months of accumulated grease:

1. Fill a basin with hot water.
2. Add Zep Citrus Degreaser — dilute 1:8 for moderate buildup, 1:4 for heavy buildup.
3. Submerge the filter completely.
4. Soak for 20–30 minutes.
5. Scrub with a stiff brush.
6. Rinse thoroughly under hot water.
7. Dry completely before reinstalling.

Method 3: Dishwasher (Easiest Method)

Many aluminum mesh filters are dishwasher-safe:

1. Check your range hood manual to confirm dishwasher compatibility.
2. Place the filter on the bottom rack.
3. Run the hottest cycle with a heavy-duty dishwasher detergent.
4. Inspect after the cycle — repeat if grease remains.
5. Dry completely before reinstalling.

How Often to Clean Range Hood Filters

• Light cooking: Every 2–3 months
• Regular cooking: Monthly
• Heavy cooking / frying: Every 2–3 weeks

Signs Your Filter Needs Cleaning Now

• Visible grease dripping from the filter
• Reduced suction — smoke and steam not being captured
• Increased cooking odors lingering in the kitchen
• Filter appears dark brown or black

Final Thoughts

Range hood filter cleaning is one of the most impactful and most neglected kitchen maintenance tasks. A clean filter means a fully functional range hood, a safer kitchen, and better air quality. Zep Citrus Degreaser handles even the worst grease buildup; the dishwasher method makes regular maintenance effortless. Clean monthly and your range hood will work like new.