32 EN
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
Note:
• The lter is not washable or reusable.
• Always turn o the air purier and unplug from the electrical outlet before
replacing the lters.
Filter alert light status Action
The lter replacement
alert lights up
Replace the
NanoProtect lter Pro S3
(FY3140)
1 Switch o the air purier and unplug from the power socket.
2 3 4 5 6
2 Pull the back cover and remove it from the appliance.
3 Pull the lter from the appliance.
4 Remove all packaging materials of the new lter.
5 Put the new lter into the appliance.
6 Reattach the back cover.
过敏原 气态污染物