Best Cooker Hood Filters for Your Kitchen

A cooker hood that is running but no longer clearing steam, cooking smells or grease is often not a sign that the appliance has failed. In many cases, the answer is simply fitting the best cooker hood filters for its design and operating mode. The right replacement can restore extraction performance for a fraction of the cost of a new hood.

The important word is right. A filter that looks similar may not sit securely, cover the intake properly or fit the fixing points on your cooker hood. Start with the model number wherever possible, then check the filter type, dimensions and attachment method before ordering.

What makes the best cooker hood filters?

There is no single filter that is best for every kitchen. Your cooker hood may be ducted outside, where it removes air from the room, or set up for recirculation, where it cleans the air and returns it to the kitchen. Some hoods can be installed either way.

A ducted cooker hood normally relies on a grease filter. This catches airborne grease before it reaches the motor and ducting. A recirculating hood needs a grease filter too, but it also needs a charcoal or carbon filter to reduce odours before the air returns to the room.

For that reason, the best choice depends on three things: how your hood is installed, the parts specified for its model, and the condition of the existing filters. Buying a premium-looking universal filter will not improve performance if it is incompatible with the hood.

Metal grease filters

Most modern cooker hoods use aluminium or stainless-steel mesh grease filters. These are the visible panels beneath the hood and are usually held in place with a spring catch or handle. Their layered mesh traps grease while allowing air to pass through.

A metal filter is designed to be cleaned and reused, provided it is not bent, damaged or excessively clogged. It is the practical choice for most homes because regular cleaning costs far less than repeatedly replacing disposable material filters. If the mesh has split, the frame no longer clips in securely, or grease remains embedded after cleaning, replace it.

Charcoal and carbon filters

Charcoal filters are generally found behind the grease filter, close to the motor. They contain activated carbon that absorbs odours, which makes them essential for recirculating installations. They are commonly round, rectangular or cartridge-shaped, and may twist onto the motor housing or clip into a dedicated holder.

Unlike metal grease filters, standard charcoal filters cannot usually be washed. Once saturated, they stop absorbing odours effectively. Some specialised long-life carbon filters can be regenerated according to the manufacturer’s instructions, but this is not universal. Check the specification for your exact filter rather than assuming it is washable.

Paper and fabric grease filters

Older cooker hoods and certain universal designs use cut-to-size paper or fabric grease filter sheets. These can be a useful, low-cost option where the appliance was made for them, but they must be changed rather than cleaned. Do not substitute them for a fitted metal cassette unless the hood manufacturer permits it.

Choose by model number, not appearance

Cooker hood filters vary more than many people expect. Two filters with similar widths may have different latch positions, corner shapes, handle designs or frame depths. Charcoal filters are especially easy to confuse, as small differences in the centre fitting can prevent them from locking onto the motor.

Find the cooker hood model number before you remove the old part. It is often on a rating plate inside the hood, behind the grease filters, around the motor area or in the instruction booklet. The label may also show the product code and serial number. Record the full model reference exactly as shown, including letters, hyphens and numbers.

If the model number cannot be found, use the old filter as a reference. Measure its overall width and depth, note the number and location of catches, and check whether charcoal filters clip, screw or twist into place. This approach can narrow the options, but model matching remains the safest route to a correct fit.

For a replacement part supplier such as Electro Spares, searching by the appliance model number is the most reliable way to identify compatible cooker hood filters. It helps avoid the frustration of ordering a filter that is only almost right.

When to clean and when to replace

Grease filters work hard in a busy kitchen. Frying, roasting and cooking with oils quickly leave a sticky coating that restricts airflow. As airflow falls, the hood has to work harder, cooking odours linger longer and grease may build up around the appliance.

For most households, clean metal grease filters every one to three months. A home that cooks daily, particularly with frying or strong-smelling foods, may need to clean them monthly. If your cooker hood has a filter warning light, treat it as a useful prompt, but inspect the filters yourself as well.

Washable metal filters can often be cleaned in warm water with washing-up liquid and a non-abrasive brush. Leave them to soak first to soften grease, then rinse thoroughly and allow them to dry completely before refitting. Many filters are dishwasher-safe, but check the manufacturer guidance. Dishwasher detergents can discolour aluminium, even when the filter itself remains usable.

Replace a metal filter when the mesh is torn, warped, corroded, difficult to secure or permanently blocked. A bent filter can allow greasy air to bypass the mesh or may drop from the hood, so it is not worth forcing it back into position.

Replace standard charcoal filters every three to six months in a typical recirculating kitchen. Their lifespan depends on how much cooking you do and what you cook. A noticeable return of cooking smells shortly after the hood has been switched on is a common sign that the carbon filters have reached the end of their working life.

Signs your cooker hood filter is holding performance back

It is easy to blame the motor when a hood seems ineffective, but filters should be the first inspection point. Look for grease visibly coating the mesh, drips around the underside of the hood, persistent odours, reduced airflow or a filter warning indicator that returns soon after a reset.

A noisy hood can also point to restricted airflow. However, noise alone does not prove that the filters are at fault. Check that the filter is fully seated and that no catch is loose. With a ducted hood, damaged or obstructed ducting can also reduce extraction, even with clean filters.

If your filters are clean and correctly fitted but the hood still performs poorly, inspect the fan and duct route where it is safe to do so, or arrange professional help for electrical or motor faults. Replacing a filter is sensible maintenance, but it cannot correct every problem.

Fitting replacement filters safely

Switch the cooker hood off at the mains before removing filters, particularly if you need to reach near the motor housing. Support a metal grease filter with one hand while releasing its catch with the other. It may be heavier than expected when coated with grease.

Fit the new or cleaned filter in the same orientation as the old one. Push gently until the catches engage, then give it a light pull to confirm it is secure. For charcoal filters, follow the indicated alignment marks and make sure each unit locks fully into position. Some hoods use two carbon filters, one on each side of the motor, so replace both together for even odour control.

Avoid running the cooker hood without its grease filters fitted. Apart from allowing grease into the motor area, this can make cleaning harder and may create an avoidable fire risk over time.

A clean, correctly matched filter is a small repair that makes daily cooking more pleasant and helps protect the cooker hood you already own. Keep the model number recorded somewhere handy, and the next filter change will be quick, accurate and far less wasteful than replacing the appliance.

Customer Q&As

1. What is the difference between a grease filter and a carbon filter in a cooker hood?

A grease filter captures airborne grease and cooking particles before they build up inside the cooker hood, motor and ducting. It is typically a metal mesh or aluminium cassette fitted beneath the hood, and it is used in both ducted and recirculating installations.

A carbon filter—also called a charcoal filter—is used mainly in recirculating cooker hoods. It contains activated carbon that helps absorb cooking odours before the air is cleaned and returned to the kitchen. Carbon filters do not replace grease filters: a recirculating hood normally needs both. Metal grease filters are generally washable, while standard carbon filters are usually disposable and must be replaced rather than washed.

2. How often should I clean or replace cooker hood filters?

For most homes, clean removable metal grease filters every one to three months, with more frequent cleaning if you fry regularly, cook daily, or notice a sticky grease coating on the filter or surrounding hood. Several UK appliance manufacturers advise monthly to three-monthly cleaning depending on use.

Standard charcoal/carbon filters generally need replacing about every three to six months. A practical starting point is every four months for a frequently used recirculating hood, but always check the manual because intervals vary by brand, filter type and cooking habits. Some specialist long-life carbon filters can be regenerated, but this rule applies only where the manufacturer specifically states that they are washable or rechargeable.

3. Can I wash cooker hood filters in the dishwasher?

Many metal grease filters are dishwasher-safe, but you should check the cooker hood manual or the filter manufacturer’s instructions first. If permitted, place the filters upright or securely in the dishwasher, ideally without other items that could interfere with the mesh. A short or low-temperature cycle may be suitable depending on the manufacturer’s advice.

For hand washing, soak the metal filter in warm water with washing-up liquid or a suitable mild degreaser for around 10–15 minutes, then gently clean it with a soft brush. Rinse thoroughly and allow it to air-dry completely before refitting. Avoid abrasive scourers, harsh chemicals and direct heat, as they can damage the mesh, finish or frame. Dishwasher cleaning can also cause some aluminium filters to discolour, although this change does not necessarily affect their function.

Do not put ordinary disposable carbon filters in the dishwasher. They normally need replacement, not cleaning, unless the product description specifically identifies them as washable, regenerable or long-life.

4. How do I find the correct replacement cooker hood filter?

The most reliable method is to find the cooker hood’s full model number, usually located on a rating plate inside the hood, behind the grease filters, along an edge of the appliance, or in the instruction manual. Search using the brand and complete model number rather than relying only on the hood’s width, as similar-looking cooker hoods can use different filter fittings. Bosch, for example, lists filters and recirculation kits by compatible cooker hood model.

When choosing a replacement, check:

• Whether you need a metal grease filter, a carbon/charcoal filter, or both.
• Whether the cooker hood is ducted outside or recirculating internally.
• The filter’s shape, dimensions, fixing points and number of filters required.
• The motor type or filter reference number, especially for round carbon filters that twist or clip onto the motor.
• Whether you require a genuine branded part or a compatible replacement designed for your exact model.

If the model number is missing, remove the existing filter and look for a printed part number, then compare the overall dimensions and attachment method before ordering.

Article Posted: 01/09/2026 07:15:24