WDH WDH-220B User Manual - page 2
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CONTENTS
1. Safety precautions.....................................................................................................4
2. Product introduction.................................................................................................8
Function description of control panel.......................................................................10
3. Before use.................................................................................................................11
Record date of use on the label….............................................................................11
Understand indicator light of air quality ..................................................................11
Disassembly and installation methods of the front panel.......................................12
Placement of air purifier..........................................................................................13
Install filter net.........................................................................................................14
Understand functions of the filter net.....................................................................17
4. How to use...............................................................................................................22
Function description of control panel......................................................................22
Start the air purifier..................................................................................................22
Manual adjustment of wind speed..........................................................................23
Timer mode..............................................................................................................24
Filter net reset and anion mode..............................................................................24
Maintenance and cleaning methods.......................................................................26
Clean the air purifier................................................................................................26
Clean air quality sensor............................................................................................26
Clean pre‐filter net...................................................................................................28
Change compound filter net.....................................................................................32
Long‐term idling.......................................................................................................36
Suggested frequency of replacing the filter net.......................................................36
6. Fault handling...........................................................................................................37
Warranty and service................................................................................................40
Order parts or accessories............................................................. ..........................40