How to Clean a Range Hood Filter: Proven 2026 Methods

Why Your Range Hood Filter Needs Regular Cleaning

I'll be honest, I ignored my Broan-NuTone range hood filter for a full year. Big mistake. The aluminum mesh was completely caked in a sticky, brownish-yellow sludge. If you fry bacon every Sunday morning or sear steaks on high heat, that grease has to go somewhere. It goes right into your filter. When it builds up, your hood gets loud, stops pulling smoke, and becomes a legit fire hazard.

I've tested this on my own kitchen setup, and a clean filter drops the fan noise by at least 10 decibels. Plus, you won't get random grease drips landing in your pasta sauce. Keeping it clean isn't just about aesthetics. It's about keeping your kitchen safe and your appliances running efficiently.

How to Remove the Filter Without Breaking It

Before you can wash anything, you have to get the filter out. Most models use a simple slide-latch mechanism. Push the little metal tab toward the handle. Pull the filter down and angle the back edge out of the slot.

Don't yank it. The aluminum mesh is surprisingly fragile. I bent the corner of a GE replacement filter once because I pulled it straight down without angling it. If your hood has two filters, remove them one at a time so you don't drop them into the stove below.

Tools and Supplies You'll Need

Before we start scrubbing, grab your gear. I keep a dedicated cleaning caddy under my sink for kitchen tasks. Here is exactly what I use:

• 12-quart stockpot (must be wide enough to fit the filter flat)
• Baking soda (Arm & Hammer, about $4 for a large box)
• Dish soap (Dawn Platinum Powerwash, roughly $6-8)
• OXO Good Grips Deep Clean Brush ($12.99)
• Heavy-duty contractor trash bags
• Microfiber cloths

The Boiling Water and Baking Soda Method (My Go-To)

This is the absolute best way to melt away years of baked-on grease. I recommend this because the heat does 90% of the work for you. It's incredibly satisfying to watch the grime just float away.

1. Boil the water. Fill your 12-quart stockpot halfway. Get it to a rolling boil at 212°F on your stove.
2. Add the magic ingredients. Toss in 1/2 cup of baking soda and a generous squirt of Dawn Platinum. Watch out, it will fizz up aggressively. Keep the pot from boiling over by lowering the heat slightly.
3. Submerge the filter. Drop it in carefully. If it doesn't fit flat, flip it halfway through the soaking process.
4. Let it soak. Give it 10 to 15 minutes. You'll see the water turn a disgusting brown. That's the grease leaving the metal.
5. Scrub the stubborn spots. Pull it out with silicone tongs. Use your OXO brush on any remaining sticky patches around the edges.
6. Rinse and dry. Blast it with hot water in the sink. Let it air dry completely on a towel before reinstalling.

I'll be honest, this takes elbow grease if the filter is severely neglected. But for regular maintenance, it's a breeze. The whole process takes about 25 minutes from start to finish.

The Dishwasher Method (For the Lazy Days)

Got a Bosch 800 series or a similar high-end dishwasher? You can just toss the filter in. I do this when I'm hosting a dinner party and don't have time to babysit a boiling pot on the stove.

Place the filter on the bottom rack. Don't put it on the top rack; the water jets won't hit it right. Add your normal detergent. Run a heavy-duty cycle, like the 'Pots and Pans' setting which hits 160°F.

Here is the catch. You must turn off the heated dry option. High heat in a dry cycle can actually warp thinner aluminum filters. I ruined a cheap $15 replacement filter doing this once. Also, don't wash it alongside your delicate glassware. The flying grease particles will coat your wine glasses in a hazy film.

Heavy-Duty Degreaser Method (For Neglected Filters)

If you just moved into a rental and the landlord left you a horrific, crusty filter, boiling water won't cut it. You need chemical muscle. I use Zep Heavy-Duty Citrus Degreaser. It costs about $12-15 a gallon at Home Depot and smells like oranges.

Put the filter inside a heavy-duty contractor trash bag. Spray the Zep liberally all over the mesh. Seal the bag tight. Let it sit outside or in a well-ventilated garage for 2 to 3 hours. The fumes are strong, so don't do this in your closed kitchen.

After the soak, take it outside. Rinse it with a garden hose on the jet setting. The sludge will slide right off. This isn't the cheapest option, but it saves you from buying a $40 replacement filter. It brings completely clogged mesh back to life.

Comparison Table: Which Method Should You Choose?

Method	Time Required	Cost	Best For
Boiling Water	25 minutes	Under $2	Monthly maintenance
Dishwasher	2 hours (hands-off)	$0.50 per load	Busy weeknights
Degreaser Soak	3-4 hours	$12-15	Severe grease buildup

How to Clean the Range Hood Exterior and Fan

Don't stop at the filter. The hood itself gets greasy, especially the underside. I use Weiman Stainless Steel Cleaner and Polish ($7.99). Spray it on a microfiber cloth, not directly on the hood. Wipe in the direction of the metal grain to avoid streaking.

If you can access the fan blower, vacuum it. I use the crevice tool on my Dyson V15 Detect. Suck up the dust bunnies clinging to the motor housing. Just make sure the unit is unplugged or the breaker is flipped first. You don't want the fan blades spinning while your fingers are near them.

What to Do If the Filter is Damaged

Sometimes the mesh tears or the frame bends out of shape. If light passes through a torn section, grease is getting into your motor. Stop using the hood until you fix it.

You can order exact replacements online. For example, the Broan S99010316 filter costs around $25-35 on Build.com or Amazon. Measure your current filter's exact length and width to the nearest 1/8th of an inch. A 10.5 x 11.75 inch filter won't fit a 10.5 x 12 inch slot properly. It will rattle terribly when the fan turns on.

Frequently Asked Questions

How often should I clean my range hood filter?

If you cook daily, clean it every three to four weeks. For heavy frying or searing, do it every two weeks. I set a recurring reminder on my phone for the first Sunday of every month. This keeps the grease from hardening into a cement-like crust.

Can I use vinegar instead of baking soda?

You can, but it's not as effective on heavy grease. Vinegar is great for hard water stains and light odors. Baking soda combined with boiling water creates an alkaline environment that breaks down fatty acids much faster. Stick to baking soda for the actual filter mesh.

Why is my range hood still loud after cleaning the filter?

The noise is likely coming from the blower motor or the fan blades themselves. Grease and dust build up on the fan blades, throwing them off balance. You'll need to remove the motor housing and wipe the blades down with a degreaser. If it still rattles, the motor bearings might be shot.

Is it safe to put aluminum filters in the dishwasher?

It is generally safe, but the harsh detergents will oxidize the aluminum. Your shiny silver filter will turn a dull, matte gray. It doesn't affect the performance at all. If you care about the aesthetic, stick to the boiling water method.

Can I clean a charcoal filter?

No, charcoal filters are designed for ductless hoods and cannot be washed. The carbon absorbs odors until it is completely saturated. Once it stops working, you have to throw it away. I recommend buying a 6-month supply so you always have a fresh one ready.