This is a quick start guide for an air purifier, which mainly introduces the operation method and filter replacement method of the product.
This Quick Start Guide provides the first‑use instructions for the Philips AC4074 and AC4072 air purifiers. It lists the required filters, their part numbers, and shows how to install or replace them.
The guide also explains how to clean the particle sensor, adjust fan speed, and use the smart‑lock feature. Step‑by‑step procedures are given for each task, with reference images labeled in the document. This manual is written in Chinese.
| Pre‑filter (AC filter) part number | AC4143 |
|---|---|
| HEPA filter part number | AC4144 |
| Formaldehyde filter part number | AC4142 |
| Multi‑care filter part number | AC4141 |
Follow the steps described for filters 2, 3 and 4 to replace the filter elements.
Clean the particle sensor as shown in section A of the guide.