Integrated HEPA/deodorization filter replacement alarm function
If the filter replacement indicator blinks while using the air purifier, replace the integrated HEPA/deodorization filter
and hold the [
] button for 3 seconds or longer to reset the alarm.
Once the filter replacement indicator is turned on, it remains on until you press and hold the [
for 3 seconds (until hearing a ringing sound) to reset the alarm.
• If you change the filter due to a strange odor before the filter replacement indicator blink, press and hold the
] button for 3 seconds (until hearing a ringing sound) to reset the alarm.
•When the integrated HEPA/deodorizing filter replacement alarm turns on, the indicator will blink and you may not be able to determine whether the
•After resetting the integrated HEPA/deodorizing filter replacement alarm, the indicator will again indicate Virus doctor function operation.
Button lock function
This function prevents the button being pressed by mistake or by children.
The  button locks the buttons.
ffThe  button locks the buttons with a ringing sound when it is pressed for 3 seconds or longer. ffWhen the button lock function is selected, none of the buttons work.
ffTo unlock the buttons, press and hold the  button for 3 seconds or longer again. The buttons are unlocked with a ringing sound.
This mode allows users to sleep comfortably in a pleasant, peaceful environment.
When the air purifier is working, press the [ ] button to set Sleep mode.
ffWhenever this button is pressed, the mode changes in the following order: Weak Sleep Auto Strong. ffThe cleanness indicator is turned off and only the Sleep mode indicator is turned on dimly.