This document is the user manual of air purifier FU-W28CX, which introduces the usage methods, maintenance methods and precautions of the product
This manual explains safety precautions, proper placement, and how to install and replace the air‑purifier’s filters. It also describes recommended indoor temperature ranges and how to keep the device clean for optimal performance.
The guide details operation controls, including plasma‑cluster ion modes, wind‑speed settings, sensor adjustments, and power‑saving features. It finishes with routine maintenance, filter‑replacement intervals, warranty information, and contact details for service support. This manual is written in Japanese.
| PlasmaCluster ion concentration (high) | 7000 (approx.) |
|---|---|
| Recommended indoor temperature range | 0‑35 °C |
| Filter replacement interval | Approximately every 4 years |
| Power reduction in eco mode | ≈0.3 W |
The filter should be replaced about every four years, or sooner if performance declines.
Use the air purifier in rooms where the temperature is between 0 °C and 35 °C.
Press the PlasmaCluster ion on/off button for more than three seconds to turn off the indicator signs, which lowers power use by about 0.3 W.