Best vacuum cleaners for 2021

Each year we put dozens of vacuum cleaners through our rigorous lab tests. The best models sail through every task, gliding over carpets and leaving surfaces dust-free – but other vacs come unstuck on even the simplest cleaning jobs.
To help you avoid a substandard vacuum, we've highlighted our favourites from our full list of the best vacuum cleaners, including our top cheap vacuum, the best option if you're keen on Shark and the one to buy for dealing with a dirty car.
We've also pulled out three models that are so terrible, we think you should avoid them no matter how good their prices may seem.
Only logged-in Which? members can view our recommendations in the table below. If you're not yet a member, join Which? to get instant access.
Best upright vacuum cleaner
Best cylinder vacuum cleaner
Best cheap vacuum cleaner
Best lightweight vacuum cleaner
Best cordless vacuum cleaner
See more of our cordless recommendations: best cordless vacuums for 2021.
Best car vacuum cleaner
Table last updated: March 2021
Not found the vacuum for you? See all of our vacuum cleaner reviews.
Three vacuum cleaners to avoid
Spending more, or opting for a well-known brand, doesn't guarantee good results, while buying a cheap vac can be risky. Our tests have uncovered pricey vacuum cleaner's from big-name brands that struggle to pick up dust, leave pet hair on carpets and are a nightmare to use. See below for three models to steer clear of.
Only logged-in Which? members can view the vacuums to avoid in the table below. If you're not yet a member, join Which? to get instant access.
See our full list of Don't Buy vacuums.
Useful features to look for when buying a vacuum cleaner
Tools and accessories
Useful tools and accessories can make a basic vac much more versatile. But as most models are sold with bundles of attachments, a few useful ones to look out for include, a combination floor tool, mini pet turbo tools and a furniture brush.
Sometimes you can source accessories separately, but they can be expensive and hard to find.
Filters
If you suffer from allergies or a respiratory condition, it's important that your vacuum adequately retains fine dust. HEPA (high-efficiency particulate air) filters alone are no guarantee of a good filtration system.
The best way to find out how efficient a vacuum cleaner's filters are is by reading our vacuum cleaner reviews – each model we test is given a star rating for allergen retention.
Variable suction power
If suction is too high on some surfaces, you'll find the nozzle of your vacuum sticking to the floor and you'll need to use some muscle to get it moving. According to our tests, pushing some models on carpet requires the same amount of force as it takes to throw an Olympic shot put. Variable suction power allows you to reduce the suction to a level that you can comfortably clean with.
The best vacuums maintain cleaning performance even with the suction reduced, so you can keep your carpets dust-free without needing the strength of an Olympian.
For more advice, see our vacuum cleaners buying guide.

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