User's Manual
Trouble Situation Treatment
After the device has been
running for a period of
time, there is no signicant
improvement in air quality.
The air quality display remains
the same.
Product operation noise is
too loud.
The air inlet is covered.
There is object within the air outlet.
The lter is installed incorrectly. Please install the lter correctly.
Please remove the objects covering the
air inlet.
Please clean the air outlet.
Please replace it with a new one.
Please clean the lter. If there is no
obvious improvement, please replace
the lter.
Please clean the PM2.5 sensor.
The lter has residual dirt.
Residual dirt stays on the PM2.5
sensor.
The lter is damaged.
After sales service
1. Free one-year warranty.
2. After the free warranty, you can contact the company to provide maintenance services.
3. The following conditions are not covered by the warranty:
a. Damage due to man-made factors
b. Damage due to unauthorized disassembly or repair
c. Normal wear and tear after usage
d. Filter (unless the filter is damaged before using)
e. Damage due to improper installation and usage
1. Please register your purchase online with a complete, correct and authentic information
within 30 days after purchase to get a one-year free warranty.
2. Keep the purchase receipt or record.
3. Terms and details for the warranty are listed on the online registration page.
Note: In order to protect your rights, please pay attention to the following information.
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Troubleshooting