How to Clean a Range Hood and Filter

The range hood works hard every time you cook — capturing grease, smoke, and steam before they coat your kitchen walls and cabinets. But all that captured grease accumulates in the filter and on the hood surfaces, reducing airflow and creating a fire hazard. Regular cleaning keeps it working effectively and safely. Here's how.

Why Range Hood Cleaning Matters

• Clogged filters reduce airflow by up to 80%, making the hood ineffective
• Grease buildup in the filter is a fire hazard
• Grease on the hood exterior makes the kitchen look dirty and is difficult to remove if left too long
• A clean hood removes cooking odors, smoke, and steam more effectively

How Often Should You Clean a Range Hood?

• Filter: monthly for frequent cooks; every 3 months for occasional cooks
• Hood exterior: monthly wipe-down
• Interior surfaces: every 3 months
• Charcoal filters (ductless hoods): replace every 3–6 months; cannot be cleaned

What You'll Need

• Dish soap (degreasing)
• Baking soda
• White vinegar
• Boiling water
• Stiff brush or old toothbrush
• Microfiber cloths
• Rubber gloves

Recommended: baking soda, white vinegar, microfiber cloths, and rubber gloves.

How to Clean Range Hood Filters

Method 1: Boiling Water + Baking Soda (Most Effective)

1. Remove the filter from the hood (usually slides or unclips out).
2. Bring a large pot of water to a boil.
3. Add ¼ cup of baking soda to the boiling water — it will fizz.
4. Submerge the filter in the boiling water.
5. Let soak for 5–10 minutes — you'll see grease releasing into the water.
6. Remove with tongs and scrub with a stiff brush.
7. Rinse under hot water.
8. Repeat if needed for very greasy filters.
9. Allow to dry completely before replacing.

Method 2: Dishwasher (Easiest)

1. Check if your filter is dishwasher-safe (most aluminum mesh filters are).
2. Place in the dishwasher on the hottest cycle with a full detergent pod.
3. Run the cycle.
4. Allow to dry completely before replacing.

Method 3: Dish Soap Soak

1. Fill the sink with very hot water and a generous amount of dish soap.
2. Submerge the filter and let soak for 30–60 minutes.
3. Scrub with a stiff brush.
4. Rinse and dry.

How to Clean the Range Hood Exterior

Stainless Steel Hood

1. Spray with equal parts white vinegar and water.
2. Let sit for 5 minutes.
3. Wipe with a microfiber cloth in the direction of the grain.
4. For stubborn grease, apply a baking soda paste, let sit 10 minutes, scrub gently in the direction of the grain, and wipe clean.
5. Dry and buff with a clean cloth.

Painted or Enamel Hood

1. Wipe with a cloth dampened with warm water and dish soap.
2. For grease, apply a diluted degreaser and let sit 5 minutes before wiping.
3. Rinse with a clean damp cloth and dry.

How to Clean the Range Hood Interior

1. With the filter removed, spray the interior surfaces with a degreaser or baking soda paste.
2. Let sit for 10–15 minutes.
3. Wipe with a damp cloth.
4. Use a toothbrush to scrub corners and crevices.
5. Wipe clean and dry.

Cleaning the Range Hood Light

1. Turn off the power to the hood.
2. Remove the light cover (usually twists or unclips).
3. Wash in warm soapy water, rinse, and dry completely.
4. Wipe the light bulb with a dry cloth.
5. Replace the cover.

Frequently Asked Questions

How do I know when my range hood filter needs cleaning?

Hold the filter up to the light — if you can't see light through it, it's clogged and needs cleaning. Other signs: the hood is louder than usual (working harder to pull air through a clogged filter), cooking smells linger longer in the kitchen, or you can see grease buildup on the filter surface.

Can I use oven cleaner on a range hood filter?

Oven cleaner is very effective on heavily greased filters but is harsh. Use only on aluminum mesh filters, not on charcoal filters. Wear gloves, ensure ventilation, and rinse very thoroughly. The boiling water and baking soda method is safer and nearly as effective.

My range hood filter is discolored after cleaning — is it damaged?

Discoloration (darkening or yellowing) of aluminum mesh filters after cleaning is normal and doesn't affect performance. The filter is still effective as long as air flows through it freely.

Final Thoughts

The range hood filter is the most important part to clean — a clogged filter makes the entire hood ineffective and creates a fire hazard. The boiling water and baking soda method dissolves grease quickly and effectively. Monthly filter cleaning and a monthly exterior wipe-down keep the range hood working at full efficiency and the kitchen looking clean.