The Philips AC4002/AC4004 bedroom air purifier user manual explains setup, filter replacement, operation modes and troubleshooting.
This manual introduces the Philips AC4002 and AC4004 bedroom air purifiers, describing their multi‑stage filtration system, indicator lights and recommended placement. It guides users through initial installation, filter installation, and how to use the control panel functions such as AUTO, FAN SPEED, TIMER and SLEEP.
Safety warnings, cleaning and maintenance procedures, sensor‑sensitivity adjustment, and a troubleshooting guide are also provided. The document ends with environmental disposal instructions and warranty service information. This manual is written in Chinese.
| Filter types | Pre‑filter, Activated carbon filter, HEPA filter, Multi‑function filter (AC4004 only) |
|---|---|
| Air quality indicator levels | 4 levels for AC4004, 3 levels for AC4002 |
| Fan speed indicator levels | 3 levels for AC4004, 2 levels for AC4002 |
| Maximum effective room area | 30 m² |
Press and hold the corresponding filter reset button for about 2 seconds; you will hear a beep and the unit will resume automatic operation.
Hold the TIMER button while plugging the power cord back in; the unit beeps and an hour indicator flashes to show the selected sensitivity level.