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 · Updated 24 July 2026 · Price checked against our tracker
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.
Approximate typical UK street price as of Jul 2026 — retailer prices seen this round ranged roughly £302–£370, so it's worth comparing live prices before you buy.
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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
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, 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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