air choice AP-528 Benutzerhandbuch - Seite 13
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area or with objects
blocking nearby.
4. Filters are dirty
resulting in filtration
efficiency.
Air
1. Dust sensor is
quality
dirty.
indicato
2. Doors or
r light
windows are always
keeps at
kept open.
red
Pollutants outside
color for
flowed into the
very
room continuously.
long
Therefore, it takes a
time.
longer time to
purify the air.
1. Please clean the dust
sensor to restore its
sensitivity.
Please refer to "Cleaning
and Maintenance" section.
2. Close the windows and
door first. Turn to high fan
speed so that the product
can purify the air in a short
time.
13