Philips' cheapest app-connected purifier: a small, quiet cylinder for a bedroom or study, but with no sensor and no auto mode.
Updated
- 170 m³/h Clean air delivery rate (CADR)
- 44 m² Recommended room size
- 19 dB(A) Noise at lowest setting
- 12 months Filter life (maker's estimate)
Pros
- 170 m³/h CADR (GB/T 18801) from a 2.2 kg, 34 cm cylinder
- 19 dB(A) on its lowest setting and 12 W at most
- Air+ app adds schedules and remote control
- One FY0611 filter with a built-in pre-filter, rated for about a year
Cons
- No air-quality sensor, so no auto mode: you choose the speed
- No activated carbon layer, so little help with cooking smells
- Stops running if the filter alert is ignored, until a new filter is reset
- App needs 2.4 GHz Wi-Fi: 5 GHz and log-in networks won't work
- Best for
- A bedroom, nursery or home office where a small, quiet purifier runs on a schedule.
- Not for
- Living rooms and open-plan spaces, or anyone who wants a purifier that reacts to the air on its own.
Our verdict
The 600i (AC0650/20) is the cheapest connected purifier in Philips’ UK range and is sized for a bedroom, nursery or study. Philips states a CADR of 170 m³/h to the GB/T 18801 standard, about 14 m² at five air changes an hour on our rule. Philips’ own 44 m² figure is worked out to the NRCC-54013 method, which assumes far fewer air changes.
It keeps things simple. One button steps through Sleep, Medium and Turbo, or the Air+ app runs it on a schedule and from your phone. Philips quotes 19 dB(A) on Sleep, when the display also drops to its lowest brightness, and 12 W at most. The 2.2 kg, 34 cm cylinder is easy to carry from room to room.
The trade-offs are in what it leaves out. There is no air-quality sensor, so no auto mode and no reading of the air, and the filter has no carbon layer for cooking smells. If you want a purifier that reacts on its own, look at the sensor models in our best air purifiers for bedrooms.
Filters and running costs
One FY0611 filter does all the work, with the pre-filter built in, and Philips puts its life at about a year; it isn’t washable. Every four weeks, wipe the outlet cover and clean the filter surface with a damp cloth or an ordinary vacuum. When the filter is nearly spent a replacement alert lights; ignore it and the purifier locks until a new filter is fitted and the counter reset. At its 12 W maximum, an eight-hour night uses about 0.1 kWh. Part numbers for every model are in our filter finder.
Philips 600i Series Air Purifier (AC0650/20) specs
- 170 m³/h Clean air delivery rate (CADR)
- 44 m² Recommended room size
- 19 dB(A) Noise at lowest setting
- 12 months Filter life (maker's estimate)
Cleaning
| Clean air delivery rate (CADR) | 170 m³/h |
|---|---|
| Recommended room size | 44 m² |
| Main filter | HEPA-type (class not stated) |
| Activated carbon (odours, gases) | No |
Noise and power
| Noise at lowest setting | 19 dB(A) |
|---|---|
| Power on lowest setting | not listed |
| Noise at top speed | 49 dB(A) |
| Power at top speed | 12 W |
| Standby power | not listed |
Filters
| Filter life (maker's estimate) | 12 months |
|---|---|
| Replacement filter | FY0611/30 |
Controls
| Air-quality sensor | None |
|---|---|
| App control | Yes |
| Ioniser | None |
| Auto mode | No |
Size
| Height | 34.1 cm |
|---|---|
| Weight | 2.2 kg |
Warranty
| Warranty | 2 years |
|---|
Manufacturer figures, checked 2 Nov 2026. — means not listed.
Where to buy the Philips 600i Series Air Purifier (AC0650/20)
- Philips£99.99Go to Philips (opens in a new tab)
Prices and stock change; the retailer’s page is always the final word.
Philips 600i Series Air Purifier (AC0650/20) questions
How often should I change the filter in a Philips AC0650?
About once a year. Philips rates the FY0611 filter for up to a year as an average: polluted air and long running hours shorten it, and the replacement alert tells you when it is due. In between, wipe the outlet cover and clean the filter surface every four weeks with a soft damp cloth or a normal vacuum cleaner, not a high-power one.
Why has my Philips AC0650 stopped running with the filter light flashing?
Its healthy air protect lock has switched on. The replacement alert lights when the filter is nearly used up, and if it flashes and the filter isn’t changed, the purifier stops until a new FY0611 is fitted. Fit the new filter, switch on and hold the mode switch (filter reset) button for 3 seconds to restart the counter.
How do I reset the filter counter after changing the filter early?
Switch the purifier on and, within 10 seconds, hold the mode switch button for 5 seconds. Use this when you change the filter before the alert appears. If the alert is still lit after a normal change, the counter probably wasn’t reset: switch on and hold the same button for about 3 seconds until the alert goes out.
Will the Philips AC0650 connect to 5 GHz Wi-Fi?
No. The Air+ app connects to the AC0650 over 2.4 GHz Wi-Fi only, and the manual says 5 GHz networks and networks that need a web login page aren’t supported. Without the app the purifier still works from its own button, which steps through Sleep, Medium and Turbo.
Where should I put the Philips AC0650?
Somewhere with at least 20 cm of free space on every side and 30 cm above it, so air can get in and out. Philips says to power it only with the adapter supplied. On our rule its 170 m³/h CADR suits a room of about 14 m², so it works best in one bedroom or study rather than an open-plan space.