Levoit Core Mini
A small, cheap HEPA purifier for a desk, nursery or box room.
Check Price on Amazon Read the full reviewThe 10 Best Air Purifiers of 2026, Ranked
Our verdict: The best air purifier in 2026 is the Levoit Core Mini. It tops our ranking with 9.0 out of 10.
Our air purifier picks
Just one pick here: nothing cheaper than the No. 1 is a better buy and no dearer model makes the top half.
All 10 air purifiers, compared
We compared 16 air purifiers sold in the UK, then ranked ten of them by how happy owners are. These ten cover compact bedroom units, mid-size smart towers, large-room machines and two Dyson models with formaldehyde or heater extras, across budget to premium prices. Every product links to its full review below.
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1
Levoit Core MiniBest Choice
9.0 out of 10
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2
Winix 5500-2
8.9 out of 10
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3
Levoit Core 300S
8.5 out of 10
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4
Coway Airmega Mighty AP-1512HH
8.5 out of 10
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5
Philips PureProtect 3200 Series AC3220/10
8.2 out of 10
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6
Blueair Blue Max 3250i
8.0 out of 10
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7
Dyson Big+Quiet Formaldehyde
7.8 out of 10
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8
Dyson Purifier Hot+Cool HP1
7.8 out of 10
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9
Blueair Blue Signature
7.7 out of 10
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10
Hoover H-Purifier 500
7.7 out of 10
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Why No. 1 beats No. 2
The Levoit Core Mini (9.0) beats the Winix 5500-2 (8.9): owners are about as happy with both, and it is the newer design.
The full air purifier reviews
1.Levoit Core Mini
A small, cheap HEPA purifier for a desk, nursery or box room. It is a budget way to start, not a unit for a living room.
What makes up the score
- How happy owners are2nd of 10
- How many rated it2nd of 10
- How new it is5th of 10
Each bar shows its place in this guide, so a full bar is 1st of 10. How happy owners are counts for most of the score.
Why it's here
- Compact enough for a desk, bedside table or shelf
- Three-stage filter with a HEPA layer
- Very low running cost
- The cheapest here
Keep in mind
- Only suitable for small rooms
- No air quality sensor or app
- Small filters need replacing about twice a year
2.Winix 5500-2
A low-cost HEPA and carbon purifier with a strong airflow for the money. It is the practical choice for pollen, dust and smoke.
What makes up the score
- How happy owners are1st of 10
- How many rated it1st of 10
- How new it is9th of 10
Each bar shows its place in this guide, so a full bar is 1st of 10. How happy owners are counts for most of the score.
Why it's here
- CADR of 390 m³/h, with Winix quoting up to 99 square metres
- HEPA and activated carbon filters
- Auto mode with air quality sensor
- Washable pre-filter and a filter-change indicator
Keep in mind
- The PlasmaWave ioniser is on by default and needs switching off if you want to avoid it
- Plain looks and no app
- Fan noise rises noticeably at higher speeds
3.Levoit Core 300S
The all-rounder for most bedrooms and living rooms. Owners rate its quiet running and app control, and the three-stage filter is easy to buy replacements for.
What makes up the score
- How happy owners are3rd of 10
- How many rated it3rd of 10
- How new it is8th of 10
Each bar shows its place in this guide, so a full bar is 1st of 10. How happy owners are counts for most of the score.
Why it's here
- Three-stage filter with HEPA and activated carbon
- Runs from around 22 dB on its quietest setting
- VeSync app with auto mode, Alexa and Google Assistant
- Replacement filters are widely sold
Keep in mind
- Levoit advises changing the filter every six to eight months
- Room-size figures vary between Levoit's own pages, so check the CADR
- Display lights are bright in a dark bedroom unless dimmed
4.Coway Airmega Mighty AP-1512HH
A long-running, well-regarded True HEPA tower. It suits allergy sufferers and pet owners and has auto and eco modes.
What makes up the score
- How happy owners are3rd of 10
- How many rated it3rd of 10
- How new it is9th of 10
Each bar shows its place in this guide, so a full bar is 1st of 10. How happy owners are counts for most of the score.
Why it's here
- True HEPA with carbon pre-filter stage
- Auto mode with an air quality indicator
- Eco mode stops the fan when the air is clean
- Filter-change indicator and allergy certifications
Keep in mind
- Design is dated and there is no app
- Lights stay on in a dark bedroom unless you dim them
- Large and bulky for a bedroom
5.Philips PureProtect 3200 Series AC3220/10
A high-airflow purifier for large rooms. HEPA NanoProtect and an active carbon layer sit behind a CADR of 520 m³/h.
What makes up the score
- How happy owners are5th of 10
- How many rated it5th of 10
- How new it is3rd of 10
Each bar shows its place in this guide, so a full bar is 1st of 10. How happy owners are counts for most of the score.
Why it's here
- CADR of 520 m³/h, rated for rooms up to 135 square metres
- HEPA NanoProtect filter plus activated carbon
- Air+ app with sensor readings and remote control
- Maximum draw of 36W is modest for its output
Keep in mind
- Philips recommends filter replacement about once a year
- Filter replacements cost more than for budget Levoit or Winix units
- Bulkier than bedroom-size units
6.Blueair Blue Max 3250i
A quiet, plain-looking tower for bedrooms and living rooms up to around 48 square metres. The HEPASilent filter keeps noise down, and the Wi-Fi app adds auto control.
What makes up the score
- How happy owners are6th of 10
- How many rated it6th of 10
- How new it is7th of 10
Each bar shows its place in this guide, so a full bar is 1st of 10. How happy owners are counts for most of the score.
Why it's here
- Rated for rooms up to 48 square metres, CADR around 239 m³/h
- Sound ranges from about 18 dB on night mode to 46 dB at full speed
- Wi-Fi app with auto mode
- One combined particle and carbon filter, simple to swap
Keep in mind
- HEPASilent is electrostatic plus mechanical, not a sealed H13 or H14 filter
- Carbon layer is thin, so it suits everyday odours better than heavy smoke or gases
- Blueair's own filter replacement guidance is around every six months
7.Dyson Big+Quiet Formaldehyde
The flagship for big open-plan rooms. It pairs a sealed HEPA H13 and carbon system with a filter that breaks down formaldehyde, and it is the pick the review sites return to most.
What makes up the score
- How happy owners are7th of 10
- How many rated it7th of 10
- How new it is5th of 10
Each bar shows its place in this guide, so a full bar is 1st of 10. How happy owners are counts for most of the score.
Why it's here
- Built for large open-plan rooms
- Sealed H13 HEPA and activated carbon filtration
- Catalytic filter that destroys formaldehyde instead of just trapping it
- App, auto mode and a live air quality display
Keep in mind
- The most expensive purifier here by a wide margin
- Large and heavy, so it stays in one room
- Replacement filters are a significant running cost over the years
8.Dyson Purifier Hot+Cool HP1
A purifier, fan and heater in one tower. The purifying is the same H13 HEPA and carbon job as a plain unit, with winter heat and summer cooling as extras.
What makes up the score
- How happy owners are8th of 10
- How many rated it8th of 10
- How new it is1st of 10
Each bar shows its place in this guide, so a full bar is 1st of 10. How happy owners are counts for most of the score.
Why it's here
- H13 HEPA filter with an activated carbon layer for odours and gases
- Heats and cools, so it earns its floor space all year
- Quiet mode runs at around 46 dB
- MyDyson app for monitoring and scheduling
Keep in mind
- Dyson says it suits well-insulated rooms or occasional heating
- Loud at the top fan speed, around 63 dB
- Costs far more than a purifier with a similar filter and no heater
9.Blueair Blue Signature
Blueair's furniture-style flagship for large living spaces. It filters with HEPASilent plus a carbon stage and is designed to sit in a room as a piece of furniture rather than hide in a corner.
What makes up the score
- How happy owners are10th of 10
- How many rated it10th of 10
- How new it is2nd of 10
Each bar shows its place in this guide, so a full bar is 1st of 10. How happy owners are counts for most of the score.
Why it's here
- Blueair quotes coverage of around 65 square metres
- Quiet at low speeds, from about 23 dB, rising to about 55 dB at the top setting
- Fabric-style casing designed to look at home in a living room
- Wi-Fi app with auto mode and air quality readings
Keep in mind
- One of the dearer purifiers here
- Large for a bedroom and needs clear space around it
- Louder at full speed, so most people will run it on auto
10.Hoover H-Purifier 500
A connected purifier with an aroma diffuser. It pairs a HEPA 13 filter with activated carbon, and PM2.5, PM10 and VOC sensors set the fan speed in auto mode.
What makes up the score
- How happy owners are9th of 10
- How many rated it9th of 10
- How new it is4th of 10
Each bar shows its place in this guide, so a full bar is 1st of 10. How happy owners are counts for most of the score.
Why it's here
- HEPA 13 and activated carbon filters
- Strong airflow for large rooms, going by Hoover's figures for the range
- hOn app with auto mode and a pollen allergy mode
- Built-in aroma diffuser
Keep in mind
- Fan noise is noticeable in a bedroom at higher speeds
- Weighs about 6.9 kg, so it is awkward to carry between rooms
- Pollen mode can only be switched on through the app
Before you buy an air purifier
What size air purifier do I need for my room?
Match the CADR (clean air delivery rate, in m³/h) to the room. A common rule is to pick a CADR of at least five times the room volume in cubic metres, so a 4m by 4m room with a 2.4m ceiling (about 38 m³) wants roughly 190 m³/h or more. Brands quote 'recommended room size' in square metres, often at one air change per hour, so treat those figures generously. Bedrooms are fine with a 100 to 250 m³/h unit. Open-plan spaces need 350 m³/h or higher.
Do air purifiers actually help with allergies and hay fever?
They remove airborne pollen, dust mite debris and pet dander that has already floated into the room, which can help symptoms indoors. They cannot stop pollen coming in on clothes and hair, and they do not remove allergens already settled on bedding and carpets. For hay fever, run one in the bedroom with the windows shut during high pollen days. They do not cure asthma or mould: mould needs the damp fixed at source.
What is the difference between HEPA and ionising air purifiers?
True HEPA (H13 or H14) filters physically trap at least 99.95% of particles at their most penetrating size. 'HEPA-type' or 'HEPA-style' filters make no such guarantee. Ionisers charge particles so they stick to surfaces, and some produce small amounts of ozone, a lung irritant, so ozone-producing models are best avoided. Choose a mechanical HEPA filter, and switch the ioniser off if one is built in, as on the Winix 5500-2.
How often do air purifier filters need replacing and what do they cost?
Most brands recommend replacing the combined filter every six to twelve months, depending on use and local air quality. Budget around £20 to £60 a year for compact models such as the Levoit Core range, and more for large towers like Dyson. Activated carbon filters saturate faster in smoky or cooking-heavy homes. Third-party filters are cheaper but do not always match the original's performance.
Are air purifiers quiet enough to leave on in a bedroom overnight?
Most are, on the lowest setting. Look for a night or sleep mode, quoted at 20 to 30 dB, which is close to a quiet whisper. Noise rises sharply at high speeds, with many models near 50 to 60 dB. Turn off display lights where you can, as the brightness often bothers sleepers more than the sound.
How much does it cost to run an air purifier all day?
At around 26p per kWh (the Ofgem cap, October to December 2026), a 22W purifier at full speed for 24 hours uses about 0.53 kWh, roughly 14p a day. On low or night mode the draw is often under 10W, so closer to 6p a day. Large units such as the Philips 3200 draw up to 36W. A Dyson Hot+Cool in heater mode costs far more, so use it for heating only when needed.
How we ranked these ten air purifiers
Every score here comes from our ranking model; no editor sets the order. Too few review sites cover air purifiers for their verdicts to lead, so this ranking is led by owners. It ranks products by how happy owners are, holding back any product few owners have rated until more agree. How many rated it and how new it is only settle close calls, and value for money earns its own badge rather than a higher place. We compared 16 models for this guide before settling on these ten.
Brands can't pay to be included or to move up. We last checked these picks in October 2026.
How we rank, in fullOur No. 1 air purifier
Levoit Core Mini
A small, cheap HEPA purifier for a desk, nursery or box room. 9.0 out of 10.