Philips Luftreiniger - Manual (Page 10)

8 ENGLISH
mode causes the appliance to run at high fan speed. You can solve this by
cleaning the air quality sensor. If condensation develops frequently during
periods of high humidity, we advise you to use one of the manual speed
settings.
Fan speed lights/filter replacement lights
- The lights on the right-hand side of the control panel have a dual
function: they either indicate the fan speed or they indicate that the
filters should be replaced or cleaned.
- When lights 1 to 2 light up continuously, they indicate the current fan
speed.
- When light 1 flashes, you have to clean the pre-filter. When lights 2
flashes, you have to replace the multi-layer filter.
- When light 2 and the REPLACE FILTER light are flashing continuously,
the multi-layer filter have to replace, and the appliance is locked (see
chapter ‘Filter replacement lock’ for more information).
Adjusting the air quality sensor sensitivity
People with certain health problems (e.g. allergies or asthma) have a
greater need for healthy air. For this reason, the appliance allows you to
adjust the sensitivity of the air quality sensor. If you set it to higher sensitivity
level, the appliance starts cleaning the air at lower pollution level.
There are 3 sensitivity levels:
- Extra sensitive (default setting)
- Sensitive
- Standard
You can adjust the sensitivity of the air quality sensor in the following way:
1 If the appliance is already plugged in, unplug the appliance and wait
for a few minutes.
2 Press the AIR QUALITY button and simultaneously put the mains
plug in the wall socket.
 The appliance beeps twice and one of the fan speed lights flashes to
show the current sensitivity level of the air quality sensor.
Sensitivity level:
Fan speed light Sensitivity level
Extra sensitive
Sensitive
Standard