User's Manual

The air quality level for PM 2.5 particles is indicated using a color scale on the display on top of the device.
PM 2.5 Index Air Quality Fan Speed
10-79
80-299
300-500
Excellent
Moderate
Poor
1
2
3
Excellent
(Green)
Moderate
(Blue)
Poor
(Red)
Check lter indicator
Press and hold the button for 5 seconds to reset the timer.
When the accumulated usage time of the lter reaches 2000 hours, the check lter
indicator will be ashing.
Note: The check lter indicator only indicates the end of a 2000 hours period. As suggested, the average lifespan of
a lter is 2000 hours. However, the lter’s life span could be extended due to low indoor air pollution.
Air quality information
13
12