Quick start guide, introduces the first use, use method, clean filter and replace filter method of AC4025 purifier
This guide introduces the Philips AC4025 air purifier, showing how to start the device and explaining the function of each filter (HEPA filter 4 and activated‑carbon filter 3). It includes quick‑start instructions and safety notes.
Later sections describe how to clean and replace filters 3 and 4, and where to find additional product information online. Contact details and a disclaimer about specifications are also provided. This manual is written in Chinese.