Quietest
Blueair Blue Max 3250i
Best for: Living rooms, and light sleepers
- Barely audible on low
- Washable fabric cover
What buyers love: less dust and allergy trouble.
Catch: No screen, just a coloured light.
Best air purifiers under £200
Near-silent, all-round, or bedroom-sized: three HEPA purifiers.
Updated 10 November 2026
Longest filter life
Levoit Core 300S
Best for: A medium bedroom or home office
- Quiet unless pushed
- Sensor adjusts the fan
Catch: Shows dust only, not fumes.
Cheapest and smallest
Levoit Core 200S
Best for: A small bedroom or nursery
- Compact, fits a corner
- Quiet night setting
What buyers love: less dust and allergy trouble.
Catch: No air-quality sensor.
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Good to know
What matters at £200, and the trade-offs to expect.
Room size in m²
Check the maker's room figure against your room. Too small a purifier never catches up.
Where it sits
In a bedroom, noise on the lowest speed matters most. In a hallway, power matters more.
Filter cost per year
Replacement filters cost real money over a few years. Check the price before buying.
Smells
All three have carbon for cooking smells. None replaces opening a window while you cook.
The trade-offs that matter
Sensor or not
The Blueair and Core 300S adjust themselves. The Core 200S runs at whatever speed you set.
Size against room
The Blueair suits a living room. The two Levoits are made for bedrooms, the 200S for small ones.
Screens and readings
Only the Levoits show numbers on the unit. The Blueair uses a coloured light and puts details in the app.
Final buying advice: Get the Blueair Blue Max 3250i for a living room or if noise bothers you. The Levoit Core 300S is the sensible choice for a medium bedroom or office. For a small bedroom, the Levoit Core 200S costs least to buy and run.
How they compare
Specs from each maker. Price levels come from shop prices we checked recently; tap through for today's price.
| Model | | | |
|---|---|---|---|
| Price level | Affordable | Budget | Budget |
| Room size (maker's figure) | Up to 48 m² | – | Up to 17 m² |
| Filter | Washable fabric pre-filter, HEPA with carbon | Pre-filter, HEPA, carbon | Pre-filter, HEPA with carbon |
| Noise (lowest) | 18 dB | – | – |
| Air quality sensor | PM2.5 sensor, colour air-quality light | PM2.5 sensor, auto mode | None |
| App | Blueair app | VeSync, Alexa and Google | VeSync, Alexa and Google |
| Shop | Check price on Amazon ↗ | Check price on Amazon ↗ | Check price on Amazon ↗ |
Questions people ask
How long do Levoit Core 300S filters last?
Longer than Levoit says. In Trusted Reviews' five-month test, the app still showed 67% left after 1,400 hours.
Is the Blueair Blue Max 3250i loud?
No. Expert Reviews found its lowest speed almost impossible to hear over normal room noise.
Is the Levoit Core 200S big enough for a living room?
Not really. It's rated for up to 17 m². HouseFresh recommends the Core 300S or bigger for larger rooms.
How we reached this
We shortlisted air purifiers that independent reviewers rate well and that we saw selling under £200 at a major shop, then compared them on the makers' specs.
We haven't tested these products ourselves. Our picks weigh independent expert reviews against each maker's published specs and the prices we checked. Opinions are ours; facts link to where they come from. How we choose.
Sources: Blueair: Blue Max / Blue Pure Max support (UK), Expert Reviews: Blueair Blue Max 3250i review, TechRadar: Blueair Blue Pure 411i Max / Blue Max 3250i review, Levoit: Core 300S Smart Air Purifier, Trusted Reviews: Levoit Core 300S review, TechRadar: Levoit Core 300S review, Levoit: Core 200S Smart Air Purifier, Trusted Reviews: Levoit Core 200S review, HouseFresh: Levoit Core 200S review.