Air purifiers: tests from several countries
Air purifiers filter fine dust, pollen and smoke from indoor air. Many models are sold worldwide, but under a different model number in each country – and rated by very different testers. Coverage is densest in Germany, the UK and the US; only a few verdicts come from France. We merge what exists and show the source, country and original verdict for every test.
- Top rated
- Dyson HushJet Purifier Compact (HJ10)
- Tests reviewed
- 30 across 4 countries
- Not from the UK
- 20 of those tests
- Last updated
- 2 September 2026
- Prices last checked
- 7 October 2026
Side-by-side comparison
Close comparison| Dyson HushJet Purifier Compact (HJ10) Rank 1 of 6 | Levoit Core 400S Rank 6 of 6 | |
|---|---|---|
| Overall score | 82 | 67 |
| Test basis | broadly tested 6 tests from 4 countries | 4 tests from 3 countries |
| Air cleaning | 89 | 68 |
| Noise | 93 | no test value |
| Ease of use | 92 | 78 |
| Running costs | no test value | 57 |
| Verdict by test country | ||
| DE Germany | 83 | 60 |
| FR France | 80 | – |
| UK United Kingdom | 85 | 80 |
| US USA | 80 | 67 |
| Price United Kingdom | Amazon.co.uk | Amazon.co.uk |
| Strengths |
|
|
| Weaknesses |
|
|
| Noise level | 24–42 dB | – |
| Weight | 3.15 kg | – |
| Dimensions | 47 cm high, Ø 23 cm | 27.4 × 27.4 × 52 cm |
| Power | 19 W | 38 W |
| Clean air delivery rate (CADR) | – | 400 m³/h |
| Room size (manufacturer) | – | up to 83 m² |
What matters to you?
Air purifiers
By your weighting · Prices for United Kingdom- 01 Dyson HushJet Purifier Compact (HJ10) 6 tests · DE FR UK US· no data: Running costs 82 Amazon.co.uk
- 02 Dyson Purifier Cool Formaldehyde (TP09) 5 tests · DE UK US· no data: Noise, Running costs 81 Amazon.co.uk
- 03 Shark NeverChange (HP150) 5 tests · UK US· no data: Noise, Ease of use, Running costs 78 Amazon.co.uk
- 04 Levoit Vital 200S 4 tests · DE US· no data: Noise, Ease of use 78 no offer
- 05 Levoit Core 300S 6 tests · DE FR UK US 77 Amazon.co.uk
- 06 Levoit Core 400S 4 tests · DE UK US· no data: Noise 67 Amazon.co.uk
The individual scores come unchanged from the tests we reviewed. Only their weighting changes. Your settings stay stored in this browser.
Where the tests disagree.
Each dot is the average test result of one country, converted to 0–100. The further apart the dots, the more it pays to read the individual reports.
All models compared
The same order in every language version. The country column shows which markets a model’s tests come from.
| # | Model | Points | Tests | Countries | Test basis | Noise level | Weight | Dimensions | Power | Price UK |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | Dyson HushJet Purifier Compact (HJ10) | 82 | 6 | DE · FR · UK · US | broadly tested | 24–42 dB | 3.15 kg | 47 cm high, Ø 23 cm | 19 W | – |
| 2 | Dyson Purifier Cool Formaldehyde (TP09) | 81 | 5 | DE · UK · US | – | 4.85 kg | 22 × 22 × 105 cm | – | – | |
| 3 | Shark NeverChange (HP150) | 78 | 5 | UK · US | – | 3.4 kg | 23.7 × 26.6 × 38.5 cm | – | – | |
| 4 | Levoit Vital 200S | 78 | 4 | DE · US | – | 5.9 kg | 40 × 22 × 51 cm | 50 W | – | |
| 5 | Levoit Core 300S | 77 | 6 | DE · FR · UK · US | broadly tested | – | 2.7 kg | 22 × 22 × 36 cm | 26 W | – |
| 6 | Levoit Core 400S | 67 | 4 | DE · UK · US | – | – | 27.4 × 27.4 × 52 cm | 38 W | – |
Frequently asked questions
Where do the scores come from?
From published tests by consumer organisations, labs and specialist publications. Every product lists each source with its country, issue and original verdict, with a link where possible. We run no tests of our own.
Why do some sources say “zitiert nach” (cited from)?
Some organisations, such as Stiftung Warentest, publish their detailed results only behind a paywall. In those cases we take the overall verdict from a freely accessible report that states the grade and issue, and we name that report.
Was exactly this model tested?
Manufacturers often sell the same appliance under different model numbers or with different accessories in each country. We group variants of one model line and name the tested variant next to the test when the source states it.
Why do the verdicts differ?
Test programmes differ: labs measure things like dust pickup or durability in endurance runs, while editorial reviews weigh everyday impressions more heavily. We do not smooth over such differences; the spread chart shows them.