Winix Zero Air Purifier review
A large room needing strong CADR and H13-grade HEPA at a mid-range price, for buyers who'll tolerate it running louder than the spec sheet suggests
By Tom Calder · Updated 24 July 2026 · Price checked against our tracker
Strong on paper — 99 m² coverage and 390 m³/h CADR rival the Philips at a lower price — but independent noise measurements ran well above Winix's own figures, and the exact live price needs checking as estimates varied widely across retailers this round. Capable, but the noisiest real-world performer among the large-room options.
Low-confidence estimate as of Jul 2026 — an exact live Amazon.co.uk price couldn't be confirmed this round and aggregator figures ranged from £137 to £219 depending on variant, so check the live listing carefully before buying to make sure you've got the standard Zero, not a Compact or Pro variant.
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- High published CADR at 390 m³/h, close to the Philips' 380 m³/h
- H13-grade HEPA plus a 4-stage filtration stack including PlasmaWave
- Large 99 m² room coverage for a mid-range price
- Independent noise measurements ran significantly louder than Winix's own published figures — expect it to be noticeable on higher settings
- Price is genuinely unconfirmed — aggregator figures for this exact model ranged from £137 to £219, so verify the live price and variant before ordering
- PlasmaWave ionisation technology is a filtration-adjacent feature some buyers prefer to avoid — check you're comfortable with it before buying
Key specs
| Room size | 99 m² |
| CADR | 390 m³/h |
| Filter | 4-stage: pre-filter, H13 HEPA, activated carbon and PlasmaWave technology |
| Noise (min) | 40.8 dB |
Our rating is a considered spec-and-evidence verdict: we verify every specification against at least two independent sources, track the UK price daily, and say plainly who a product isn't for. Commissions never change a rating. Read the full methodology →
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