View image in fullscreen The Filter Health & wellbeing Review The best air purifiers in the UK to cleanse your home of fumes, pollen and dust – tested Whether you suffer from hay fever, damp rooms or just want to breathe cleaner air, here are the best purifiers from our expert’s test of 10
Pete Wise Thu 18 Jun 2026 16.00 CEST Share Prefer the Guardian on Google The Guardian’s journalism is independent. We will earn a commission if you buy something through an affiliate link. Learn more .
Y ou may not have given much thought to air quality, nor to air purifiers, if you’re lucky enough never to have had hay fever or any of the many other health conditions connected to airborne particles.
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But air pollution – including industrial emissions, exhaust fumes and dust – is one of the gravest environmental health risks in the UK. Densely populated and low-income areas feel the worst effects . It’s a global problem, explored in Beth Gardiner’s book Choked .
While you can’t do much about the air quality outdoors, a good air purifier will sanitise the air inside your home, invisibly yet measurably making the space conducive to better health. These electrical appliances work by drawing in air and passing it through one or more filters, which capture unhealthy particles such as dust, pollens, pet dander and fumes (often known as VOCs).
Purifiers are more varied than you might think, with differences in effectiveness, purification range, filtration, additional functionalities and controls. I tested 10 popular models and selected the seven best air purifiers to feature.
Best air purifier overall : Blueair Blue Signature large
Best budget air purifier : Levoit Core Mini LAP-C161-WUK
Best mid-size air purifier: MeacoClean CA-Hepa 76x5
Best small air purifier : Sans air purifier Mini
Why you can trust me Air purifiers are among the countless products I’ve tested for publications including the Filter over the past decade. Much like electric heaters , they require a rigorous approach to testing with repeatable conditions and careful measurement. The reviews below should give you some useful intel on how well each purifier cleans the air, not just how nice it looks and whether I enjoyed pressing the buttons.
While every product review deserves time and care, I take my research especially seriously when testing health-focused products, such as purifiers. My approach to this article was grounded in extensive reading on air quality and its effects.
Some brands didn’t want their purifiers back after testing. These units have been donated to the Cat Action Trust 1977 , a small national charity dedicated to the welfare of feral cats.
View image in fullscreen An air quality monitor was used to measure the PM2.5 particulate count with each of the air purifiers. Photograph: Pete Wise/The Guardian The crux of my testing was finding out how effectively the purifiers sanitised the air in my home. To prepare for testing each model, I degraded the air quality (by cooking, doing DIY, or lighting a cosily health-ruining wood fire ) until my air quality monitor indicated that the air’s PM2.5 particulate count was higher than 5μg/m³. That means every cubic metre of air contained over five micrograms of particulates with a diameter of 2.5 micrometres or less. (PM2.5 particles are considered particularly harmful, and several ordinary hous...