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NeffN30 D5855X1GB

Canopy
73cm

£299View retailers

Test score

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The Neff N30 D5855X1GB is a built-in canopy cooker hood that has three speeds and a boost setting to help rid your kitchen of unwanted grease, steam and smells. We tested it to find out whether it can do all three quickly and efficiently and, just as importantly, how noisy it is. Read our review to find out whether you should choose this hood for your kitchen.

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KEY TEST RESULTS
Grease extraction
Steam extraction
Ease of use

Jul 2024Last checked by Which?
Jul 2019First reviewed by Which?
Nov 2018Released

The overall Which? test score is made up of the following star ratings, all determined by our rigorous lab tests.

How we test cooker hoods

11 Apr 2025

Grease extraction

How we test grease extraction

We turn the cooker hood onto maximum setting, then drip a small amount of oil and water onto a hot pan for 30 minutes. We then leave the cooker hood on for a further 10 minutes and record how much grease has been captured by the filter.

Odour extraction

How we test odour extraction

We turn on the cooker hood to its maximum setting, then fill a pan with water and heat it up on the hob. A strongly aromatic chemical (methyl-ethyl ketone) is dripped into the water over 30 minutes. Its aromatic concentration is measured every minute at four different points in the room to determine how effective the cooker hood is at extracting the smell.

Steam extraction

How we test steam extraction

We heat up a pan of water on each cooking zone of a hob. When the humidity has reached 90%, we turn on the extractor fan to maximum and record how long it takes for the humidity to drop to 60%. This gives a good indication of how effective the cooker hood is at removing steam.

Noise

How we test noise

We turn the cooker hood on to maximum then measure the noise at a distance of one metre. A panel of assessors also note any specific noises such as vibration, humming or rattling.

Ease of use

How we test ease of use

We assess how easy it is to install, use, clean and maintain the hood, including the quality of the lighting.

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