However a mismatched cooker hood-hob combo often isn't practical. Space and cost can be major considerations. If this is the case, you're best off starting with a size that matches the size of your hob and buying a cooker hood with a performance that's proven to impress. If you're looking for a cooker hood big enough to be fitted above a 110cm-wide hob or range cooker, you'll find plenty of chimney-style hoods to choose from.

Not sure you have the space for a cooker hood? See our guide to the Best venting hobs - hobs with built-in extraction capabilities. Do cooker hoods have to be vented to the outside? To read more about cooker hood features, see our Cooker hoods jargon buster. What size cooker hood should I buy? The ideal cooker hood width will correspond to the size of your hob and you'll probably want to match these up. Metal filters are washable – they're easy to remove, as they clip in and out of the underside of the hood. They are usually suitable for dishwashers. Cooker hoods are purpose-built to absorb the unwanted by-products from cooking and they're positioned in the best way to capture and remove steam, grease and odours. A window or dehumidifier away from the hob won't capture as much steam, and for odours and grease, they won't do much good.

The best cooker hoods we've tested aren't much noisier than the humming of a refrigerator; the worst can sound four times as loud. These days, grease filters are usually made of aluminium or stainless steel, although you do still come across some made of a fleece material or paper. To keep the grease filters clean, you'll need to wash or change them regularly.

Please note: all dimensions indicated in this ad are approximate and may vary slightly from indicated measurements. They are included as a guide to assist you in selecting the right part for your machine***

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You'll need to get one with a canopy that spreads all the way across the width of your cooker – so whether you've got four rings on your hob or a wide cooker with eight burners, make sure you choose an appropriate size. Installing a new kitchen along with your new cooker hood? See our guide to the Best kitchen brands. Best cooker hood features to consider Fleece or paper filters will need replacing every few months, depending on how much frying you do. Some hoods come with a handy saturation indicator that lets you know when the filter should be changed or washed. This product is designed to be compatible with the specified brand(s) and is not the original part. The name, model names and any part numbers of the original manufacturer(s) have been used for reference purposes only and are in no way associated with the original parts or manufacturer. Visor hoods tend to be relatively cheap and, like integrated or built-in cooker hoods, are good for kitchens with limited space.

Cooker hoods aren't terribly complicated, but there are a few key features that can be useful to have: The most common cooker hood width is 60cm, which is suitable for standard-sized hobs. Also common are 90cm wide cooker hoods. You'll find that brands will often release the same cooker hood style in 60cm wide and 90cm wide versions. Cooker hoods can be expensive, space-consuming and difficult to install. For this reason, some choose to simply open their windows while they boil and fry. This age-old method isn't the worst idea, but it will leave odours, steam and airborne grease to settle in your kitchen. And in the winter, it'll sap your heat and leave you shivering while you cook. Features to look for on cooker hoods in this price range include three power settings, an additional power boost, and the option to set the hood to switch off automatically after a short period. Delayed off function This function means you can leave the hood working away while you sit down to eat your meal. It will turn off automatically 15 or 20 minutes later.Alternatively, if you buy a cooker hood that is wider than your hob, say a 90cm-wide cooker hood for a standard-sized 60cm wide hob, you can expect slightly better performance. Cooker hoods that exceed your hob in width will be able to catch more rising steam and clear the air more easily.