12 EN
5 Put the lter back into the appliance (g f)�
6 Reattach the back cover (g g)�
7 Put the plug of the air purier in the power socket�
8 Touch the button to switch on the appliance�
9 Touch and hold the lter status check/reset button for 3 seconds to
reset the lter cleaning time (g v)�
» The screen displays a message "Filter cleaning completed"�
10 Wash your hands thoroughly after cleaning the lter�
Replacing the lter
Understanding the healthy protection lock
This air purier is equipped with a lter replacement indicator to make sure
that the air purication lter is in optimal condition when the air purier is
operating� When the lter need to be replaced, the lter replacement alert
lights up red�
If the lter is not replaced in time, the air purier will stop operating and
automatically lock to protect the air quality in the room� Replace the lter as
soon as possible�
Replacing the lter (Fig w)
Note:
• The lter is not washable or reusable�
• Always turn o the air purier and unplug from the electrical outlet before
replacing the lter�
Filter alert light status Action
The lter replacement alert
lights up
Replace the NanoProtect lter Series 3
(FY4440/30)
1 Switch o the air purier and unplug from the power socket�
2 Pull the back cover and remove it from the appliance (g c)�
3 Pull the lter from the appliance (g t)�
4 Remove all packaging materials of the new lter (g e)�
5 Put the new lter into the appliance (g f)�
6 Reattach the back cover (g g)�
7 Put the plug of the air purier in the power socket�