Philips Series 2000i Air Purifier for Large Rooms (AC2936/33) review
A large room where both filtering speed and a genuinely quiet sleep mode matter
By Tom Calder
The strongest all-round spec sheet here: the highest published CADR (380 m³/h) alongside the quietest published sleep-mode figure (15 dB). The HEPA filter also carries ECARF certification, a genuine third-party allergy-friendly standard rather than marketing language. Worth checking live stock before you buy, as one signal this round suggested possible gaps at some UK retailers.
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- Highest published CADR on this list at 380 m³/h
- Quietest published sleep-mode figure at 15 dB
- ECARF-certified HEPA filter — a genuine independent allergy-friendly standard
- Turbo mode reaches 54 dB, the loudest maximum figure on this list, so full-speed running is noticeable
- UK retailer pricing varies by roughly £70 depending on where you buy
- Stock availability was uncertain at some retailers this round — check before ordering
Who shouldn't buy this
you want the cheapest option and don't need large-room coverage — the Blueair 511 or Levoit 300S cover a smaller room for less.
Key specs
| Room size | 98 m² |
| CADR | 380 m³/h |
| Filter | 3-stage NanoProtect HEPA filter, plus active carbon and a pre-filter |
| Noise (min) | 15 dB |
Our rating is a considered spec-and-evidence verdict: we verify every specification against at least two independent sources, re-check the UK price on a schedule where we can track it automatically, and say plainly who a product isn't for. Commissions never change a rating. Read the full methodology →
Alternatives to consider
as of 20 Sep 2026, 12:29 BST · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.as of 20 Sep 2026, 12:29 BST · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.as of 20 Sep 2026, 12:29 BST · Details
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon.co.uk at the time of purchase will apply to the purchase of this product.Want this cheaper?
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