How to Clean a Greasy Kitchen Range Hood Filter

Cleaning is essential to make the hood look, smell, and function like new.

Plus, dirty hood ranges can contaminate a home’s HVAC system and potentially contribute to a house fire.

Here’s a step-by-step guide on how to clean a greasy kitchen range hood filter.

Wooden range hood next to white cabinets with a small white tiled backsplash

The Spruce / Sarah Lee

The vent is working if the paper is sucked up and held in place.

Prepare the Cleaning Solution

Fill a sink or large pot with boiling water.

Add 1 to 2 tablespoons ofdishwashing liquid containing a degreaserto the water.

Materials and tools to clean a range hood filter on kitchen countertop

The Spruce / Sarah Lee

Add a 1/2 cup baking soda and mix the solution well.

Remove the soaking filter before the water cools entirely and the grease resettles on the filter.

Rinse well with hot water and dry thoroughly before placing back in the range hood.

Range hood filter being removed by hand

The Spruce / Sarah Lee

check that the stovetop is clear of any utensils.

Then spray on a degreaser or ahomemade vinegar solutionon all the surfaces.

Allow it to sit for 15 minutes before wiping it off with a paper towel.

Blue dishwashing liquid and baking soda solution in white mixing spoon for cleaning range hood filter

The Spruce / Sarah Lee

If any particles are left, spritz a bit of the degreaser on a nylon-bristled brush and scrub.

Finish by wiping away any remaining residue and rinse everything well with a wet cloth.

If you aren’t a frequent chef, seasonal cleaning will be sufficient.

Range hood filter soaked in sink with soapy cleaning solution and water

The Spruce / Sarah Lee

This malfunction could mean the filter or ductwork is clogged with grease and needs cleaning.

Another indicator that you must clean the hood is if the motor is humming loudly or constantly.

A loud motor indicates it’s working harder than usual.

Small wooden scrub brush rubbing cleaning solution into range hood filter

The Spruce / Sarah Lee

The motor or fan may need cleaning to get it running correctly.

Vinegar is composed of 95 percent water and 5 percent acetic acid.

This mild acid is strong enough to cut through grease and has no harsh fumes or chemicals.

Heavy duty degreaser sprayed on the underside of the range hood

The Spruce / Sarah Lee

It doesn’t smell great at first, but the scent dissipates after a few minutes.

Avoid using vinegar on marble, granite, wood finishes, and porous tile.

Acetic acid can corrode and remove the shine from hard surfaces and finishes.