Clean metal range hood filters on the manufacturer schedule, usually every 3 to 6 months for typical use and more often if you cook greasy food frequently. Light cooking may only need cleaning every few months. Charcoal filters are usually replaced, not washed.
Why the filter matters
The range hood pulls grease, steam, smoke, and cooking odors away from the cooktop. A greasy filter reduces airflow and can drip residue back toward the stove. It can also make the kitchen smell stale after cooking.
Which filter do you have?
- Metal mesh or baffle filters: usually washable.
- Charcoal filters: usually replaced on a schedule.
- Combination filters: check the manual because designs vary.
How often to clean or replace
For metal filters, every 3 to 6 months is a common manufacturer range for typical use. If you fry often, cook with a lot of oil, or use the range daily, check more often. If the filter is visibly greasy, airflow is weak, or odors linger, clean it sooner.
For charcoal filters in recirculating hoods, follow the manual. Many need replacement around every 6 months, or sooner with heavy cooking, because the carbon becomes saturated.
How to clean metal filters
- Turn the hood off and let the cooktop cool.
- Remove the filter carefully.
- Soak it in hot water with dish soap.
- Use a soft brush to remove grease.
- Rinse well and let it dry fully.
- Reinstall it securely.
Some metal filters are dishwasher safe, but check the manual first. Dishwasher heat and detergent can discolor some finishes.
Signs it's overdue
- The filter feels sticky.
- Airflow seems weak.
- Cooking odors linger longer.
- Grease drips or collects around the hood.
- You can't remember the last cleaning.
When cleaning isn't enough
If airflow is still weak after cleaning, check whether the duct is blocked, the fan is dirty, or the hood is recirculating through an old charcoal filter. If the hood sparks, smells electrical, or sounds wrong, stop using it and get service.
Good maintenance rhythm
- Monthly: check the filter if you cook most days or fry often.
- Every 1 to 3 months: clean metal grease filters for a typical home kitchen.
- Sooner: clean when the filter feels sticky, airflow drops, or cooking smells linger.
- As needed: replace disposable charcoal filters if your range hood uses them.
- After heavy cooking: wipe the hood surface so grease doesn't build up around the filter.
Pair range hood filter cleaning with your monthly kitchen reset. It's quick, visible, and easy to forget until the grease is obvious.
Add reminders to the Dome mobile app to always stay ahead of your home maintenance.