Clean Pre-Filter Net - WDH -220B User Manual

ATTENTION:
Condensed water may be formed on the air quality sensor when humidity in the room
is extremely high. Therefore, indicator light of air quality will display poor air quality
even if the air quality is good. In this case, please clean the air quality sensor or use
any of the manual speed set.
1. Use a soft brush to clean air inlet/outlet of the air purifier.
2. Dismount protective cover of the air quality sensor.
3. Use wet cotton stick to clean air quality sensor, air inlet and air outlet.
4. Wipe them dry with dry cotton stick.
5.Reinstall protective cover of the air quality sensor.
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Clean pre‐filter net
Information
To achieve the optimum performance, it is recommended to wash and maintain the
filter net every two months (about 480 hours) after the initial use.
* Based on use of the product at home for 8 hours every day, and 7 days one week in
average.
For exterior maintenance, wipe surface with a piece of wet cloth or mild cleaning
agent to prevent dust accumulation.
Please turn off the power and pull out the plug during cleaning and maintenance.
Only pre‐filter nets are washable, other filter nets are not washable.
ATTENTION:
Please use low speed vacuum cleaner to prevent filter net of the machine from being
damaged.
HINT:
Please remove plastic packing of each filter net before putting them into the machine.
And make sure the label of filter net on one side is facing upward.
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