What to look for
- Check CADR (clean air delivery rate) and match it to your room size.
- True HEPA filters capture fine particles from pollen, dust and smoke.
- Add up filter costs; they can exceed the purifier’s price over a few years.
- Look for a quiet sleep mode if the purifier goes in a bedroom.
How much to spend
Typical prices run from £69 to £499. Budget models cover the basics; spending more usually buys big-room HEPA cleaning with an app. Only pay for features you will use.
Who should skip what
- Skip the Levoit Core 400S Smart Air Purifier if you need to clean a very large open space
- Skip the Blueair Blue Pure 211i Max if you only need to clean a small bedroom
- Skip the Levoit Core 300 True HEPA Air Purifier if you need to clean a large living room
- Skip the Winix Zero Pro Air Purifier if you want the quietest purifier
Buying tips
Air purifier prices drop on Prime Day and ahead of allergy and wildfire seasons. Check the cost and availability of replacement filters before you buy.
Our picks
See all our best air purifiers in the uk for more options.
Recommended products
Best overallLevoit · Air Purifiers
Levoit Core 400S Smart Air Purifier
Proven and affordable.
- Verdict
- Buy
- Best for
- Most rooms
- Typical price
- £179–£219
Pros
- H13 True HEPA filter
- Quiet sleep mode
Cons
- Bulky
Best budgetLevoit · Air Purifiers
Levoit Core 300 True HEPA Air Purifier
For small rooms.
- Verdict
- Buy
- Best for
- Small rooms and budgets
- Typical price
- £69–£89
Pros
- Very affordable
- Quiet sleep mode
Cons
- Small room coverage
Best for large roomsBlueair · Air Purifiers
Blueair Blue Pure 211i Max
Quiet power.
- Verdict
- Buy
- Best for
- Large rooms
- Typical price
- £229–£319
Pros
- High clean air delivery
- Quiet operation
Cons
- Bulky
Frequently asked questions
Do air purifiers help with allergies?
Yes. HEPA purifiers remove pollen, dust and pet dander from the air, which many allergy sufferers find helps.
Do air purifiers help with wildfire smoke?
HEPA purifiers sized for the room remove most smoke particles. Close windows and run on high during smoky days.
Where should I put an air purifier?
In the room you use most, usually the bedroom, with a foot or more of space around it.