Haverland AIRPURE-140C, User Manual

Page: 22 / 52

22
MAINTENANCE
Cleaning the air quality sensors
If the PM2.5 level remains unknown for a period of
time, the reason might be that there is dust on the
sensor. Please open the small cover on the right side
of the appliance, and use a dry cotton swab to clean
the surface of the camera lens. Do not use alcohol or
detergent to clean. Be sure to close the cover after
cleaning.
Open the cover
Use a dry cotton
swab to clean the
lens.
Camera lens
Do not block the
sensor vents
Please do not
damage or remove
this foam.