Operating Instructions

31
B
Operation / Display
Air quality indicator
The air quality is displayed in 3 colours (in all
fan speeds):
Switch button (B) green: good air quality
Switch button yellow: average air quality
Switch button red: poor air quality
Filter replacement indicator
The switch button (B
intervals).
1 year (depending on operation and
sooner.
The device will only function with an original
Note:
correctly, the switch button flashes red and the
Display