The document provides instructions for using the HealthyAirProtect Lock product and a guide for replacing the filters. The product features a clean particle sensor, multiple filters, and a smart lock.
This quick service manual covers the Philips AC4004 and AC4002 models. It includes step‑by‑step service procedures, cleaning instructions for the particle sensor, and guidance on filter replacement.
The document also references related models (AC4121, AC4123, AC4124) for parts compatibility and provides safety notes for handling the equipment. This manual is written in Chinese.
The manual covers the AC4004 and AC4002 models.
Follow the cleaning instructions provided in the manual for the particle sensor.