THE best air purifiers can help with allergies and asthma by filtering dust, pollen, viruses and pollution out of the air in your home.
If you’ve been considering an air purifier but aren’t sure which one to choose, read on — we’ve rounded up some of the best models available to buy now, at a range of price points.
What does an air purifier do?
Air purifiers sanitise the air inside your home, making it healthier by removing nasty particles, viruses and pet dander. The best air purifiers will clean the air in a room around five times per hour.
This helps to lower the risk posed by contagious diseases. It can also mitigate the symptoms of health conditions such as asthma and allergies like hay fever.
Unsurprisingly, air purifiers became a popular commodity at the start of the coronavirus pandemic. You shouldn’t rely on one to tackle Covid in confined spaces, but they have been shown to reduce levels of the virus in the air and studies carried out during the pandemic revealed that people feel safer at work if there is an air purifier installed in their office.
We’ve rounded up the best air purifiers on the market based on testing, reviews and expert opinion.
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1. We tested: Leitz TruSens Z2000 air purifier
- Leitz TruSens z2000 air purifier, £218.80 at Amazon – buy here
Having recently been diagnosed with a very unexciting allergy — house dust mites — we were excited to see whether the Leitz TruSens could relieve some of our symptoms.
Prior to owning an air purifier, we were reliant on allergy medication to halt the sneezing and general itchiness, especially as deep cleaning the house didn’t seem to make a difference.
We tested out the Leitz TruSens Z2000 for three weeks and would say our allergy symptoms reduced by around 75%.
We no longer need to take our medication daily, and despite the air quality level in our home rarely reaching above 10 (considered excellent air quality), the air feels both cleaner and easier to breathe.
The purifier is easy and intuitive to use, is extremely quiet (except for the odd occasion when air quality reduces and it kicks into action), and looks sleek and unassuming in the corner.
It comes in three sizes, has five stars on Amazon, and we love it so much we’re considering getting another for our bedroom.
2. We tested: MeacoClean CA-HEPA 47×5 Air Purifier
- MeacoClean CA-HEPA 47×5 Air Purifier, £149.99 at Currys – buy here
We’ve reviewed a few of Meaco’s appliances and have always been impressed with the quality and value for money they provide, and therefore we were pretty excited to put one of the brand’s air purifiers to the test.
The first thing we noticed about the MeacoClean was its small and sleek appearance. We placed it under a desk and it blended so well into the surroundings, it was easy to forget it was there.
It was quick and simple to set up, has intuitive sensor touch controls, and there’s a filter replacement indicator that tells you when it’s time to replace the filter (we’ve yet to get to this stage).
It has a carbon filter that removes smells in the air and it has three fan settings — you’ll note it gets noisier as you increase the speeds.
After usage, we found the air smelled cleaner and less musky and it put our mind at ease having it in the house during flu season.
Overall, the MeacoClean didn’t disappoint and we’d recommend it for those looking for a small or unobtrusive air purifier.
If you’re looking for a dehumidifier as well as an air purifier, take a look at our review of Meaco’s Arete One which combines the two.
3. Vax ACAMV101 Pure Air 300 air purifier
- Vax ACAMV101 Pure Air 300 air purifier, £238.83 at Amazon – buy here
This is a sturdy machine suitable for homes of up to 120m² and comes equipped with five speeds.
This model comes with a dust sensor that lets you see when the air is being cleaned.
It also has a HEPA filter – designed to last three to six months, depending on usage – as well as an ionisation option.
It also comes with a three-year warranty, making it a solid investment.
4. Dimplex DXAPV3N
- Dimplex DXAPV3N Air Purifier, £55 at Amazon – buy here
Although the Dimplex is the cheapest air purifier on this list, it comes with plenty of features: it has a HEPA filter, two speed settings, « enviro-neutralising » technology and a one-year manufacturer’s guarantee.
Reviewers say that they have noticed a big difference in the severity of their allergies when they have the Dimplex on, although some have noted that, at 50db, it’s not one of the quietest devices available.
5. BlueAir Blue Pure 411 air purifier
- BlueAir Blue Pure 411 Air Purifier, £120 at Argos – buy here
Small but powerful, this product is designed for rooms of up to 15m².
A single button controls it all and lets you know when it’s time to replace the filter.
It’s ideal for anyone living in a flatshare and looking for a machine that will clean the air in their bedroom.
6. Bionaire BAP600-060 Air Purifier
- Bionaire BAP600-060 air purifier, £44.99 at Amazon – buy here
A compact and cool design, the Bionaire BAP600 air purifier is perfect if you suffer from allergies or react badly to pollutants.
It’s suitable for rooms of up to 30m² and comes with three speed settings.
According to the retailer, it removes up to 99% of airborne particles that passing air through the HEPA filter, including tobacco smoke, pet dander, pollen, dust and mould spores.
7. Dyson Hot+Cool purifying fan heater
If you want an air purifier that will clean the air in your home and keep you at an ideal temperature, go for the Dyson Pure Cool tower.
Dyson claims the HEPA filter in the fan will remove 99.95% of particles and the device automatically monitors indoor air quality and adjusts airflow accordingly.
It also features a night mode for light sleepers, 10 air speed settings, and voice control functionality. It also helps that it looks extremely sleek.
8. electriQ EAP500HC
- electriQ EAP500HC, £229.98 at Appliances Direct – buy here
The electriQ EAP500HC is designed for those who suffer from asthma, hay fever or other allergies.
It features an LED indicator that shows you exactly how good or bad the air quality is in your home, changing from red to green when the quality improves.
There’s also a handy indicator to show you when you need to change the filters.
9. HoMedics Compact Air Purifier with UV-C
- HoMedics Compact air purifier, £99.99 at Amazon – buy here
The HoMedics Compact air purifier is good for those looking for a small device to tuck away in the corner of a room.
It comes with three speeds and has a night mode for uninterrupted use while you sleep and covers rooms of up to 75.8m².
Its price is attractive but do bear in mind that it is equipped with a HEPA-type filtration system, which makes it less effective than an actual HEPA filter.
10. The White Company air-purifying diffuser
- Air-Purifying Diffuser, £85 at The White Company – buy here
Those who want an air purifier on the go might like this clever portable dual-purpose air purifier from The White Company. This mobile purifier has a negative-ion air filter but also works as a diffuser giving out a subtle fragrance to freshen up any space.
The diffuser can be used with any White Company aromatherapy or fragrance oils; just add a few drops to the lava-rock diffuser for purified, scented air.
It’s compact enough to easily transport and we think it looks pretty cool, too.
11. Blueair Classic 405
- Blueair Classic 405 Air Purifier With Particle Filter, £444.11 at Amazon – buy here
The Blueair Classic 405 has HEPASilent filtration technology that claims to remove 99.97% of all airborne particles down to 0.1 microns — making it marginally more methodical than the more expensive Dyson Hot+Cool.
In a 40m² room, it completely cleans the air every 12 minutes, and it has been certified as a Which? Best Buy.
It also operates at just 37db and has been awarded the Quiet Mark, an independent global certification given to the quietest products in various industries.
12. Boneco P500 HEPA and Carbon Air Purifier
- Boneco P500 HEPA and Carbon Air Purifier, £416.40 at Viking Direct – buy here
Swiss outfit Boneco’s sleek air purifier is suitable for slightly smaller rooms than the Blueair — around 28m².
It has three modes (auto mode, sleep mode and power mode) meaning that it can adapt to whatever your needs are. In sleep mode, it makes just 31db of noise, making it one of the quietest of its size in this list.
It’s also super efficient, cleaning around 258m³ of air every hour.
13. Levoit Air Purifier
- Levoit Air Purifier, £79.99 at Amazon – buy here
If you’re looking for something you can take on the go that won’t break the bank, this device by Levoit might be the best air purifier for you. It has a three-stage filtration system that catches allergens, pet hair, dander, smoke, odour and dust particles — anything larger than 0.3 microns.
Levoit claims that it’s a great choice for anyone suffering from allergies, nasal stuffiness, a cough, sneezing or asthma. It’s also super quiet, being able to operate at 25db.
And for complete peace of mind, it comes with a two-year warranty.
What are the different types of air purifiers?
The most popular type of air purifier is one that comes with a high-efficiency particulate air (HEPA) filter.
These should remove 99.97% of airborne particles that are 0.3 microns or bigger, which includes dust, pollen, mould and bacteria, and are used on planes and in operating theatres.
For getting rid of bad smells like smoke and pets, you could try an air purifier that’s equipped with carbon filters, which are designed specifically for this.
You can also get air purifiers that emit negatively charged ions into the air. When these ions combine with allergens or dust in the air, they become too heavy and will fall to the ground so you can clean it up with a vacuum cleaner.
Finally, there are UV air purifiers, which use UV light to destroy bacteria and viruses that might be floating in the air.
Which is the best air purifier to buy?
The best air purifier for you will depend on why you need it.
We loved our time with the Leitz TruSens, to the point that we’re considering buying another — however, Dyson has made a name for itself thanks to the quality of its products, while the Blueair Classic 405 has been certified a Which? Best Buy.
Should I sleep with the air purifier on?
This is down to personal preference.
Studies have shown that when you switch the air purifier off, the number of pollutants in the air will slowly creep up. So if you suffer from extreme allergies, it would be best to keep it on constantly.
But some air purifiers can be quite noisy, which can disturb your sleep. It might also have operating lights that can keep you awake at night.
If you do want to sleep with your air purifier on, make sure that you look for a whisper-quiet model and have a good eye mask to keep out the light.
Do air purifiers help with allergies?
Air purifiers can help to relieve the effects of certain allergies caused by airborne particles, such as hay fever — an allergy to pollen — and dust mite allergies, which are caused by microscopic bugs that live inside house dust (gruesome, we know).
They can also help with asthma, which can be caused by allergies such as the ones we just mentioned, as well as smoke and pollution in the air.
Do air purifiers remove smells?
Yes, air purifiers can be extremely useful in removing nasty smells from your home. Placing one in your kitchen can help remove the smells left over by particularly pungent dinners — ones including fish, for example — burned food, or the nasty smell caused by rubbish.
Do air purifiers help with dust?
Yes, absolutely. Most air purifiers are designed to remove dust particles from the air.
Air purifiers that have a HEPA (High-efficiency particulate air) filter should be the most effective at removing dust particles (and other pollutants) from the air.
Does an air purifier cool the room?
Air purifiers are intended to filter the air rather than cool it. If you’re looking to cool a room, you should consider an air purifier with a fan or air conditioning function.
Enjoyed our recommendations for the best air purifiers? We’ve also rounded up the best air conditioners.
And for more budget-friendly cooling, we found the best tower fans you can buy for summer 2022.
For more homeware reviews and recommendations to browse before you shop, head to Sun Selects Home.