3.5. Timer Button
This button is used to set the automatic shut-off timer.
4. LED Display
This unit is equipped with a full function LED display which shows the operating status and condition
of the unit as follows:
4.1. Sensors and Air Quality Indicators
There levels of both Dust particles and the presence of Gases are shown in the LED Display: There
are 4 levels for each and as the presence of contaminants increases, the Air Quality Indicators will
change to show less than optimal air quality. As the air quality improves, the indicators will show the
air quality as indicated below:
Contaminant Level
Minimal Low Medium High
Air Quality Level
Very Clean Clean Good Average Poor
110112
Fan Speed
Silent Middle Strong Turbo
Fan Speed Indicator Color*
Green Blue Orange Red
* When operating in Auto Mode.
4.2. Check Filter Indicator
After a total of 3,000 cumulative hours (125 days) of operation since the last reset, the
Check Filter
indicator on the LED Display will illuminate as a reminder that you should check the filters and clean
or replace as necessary. If the prefilter is dirty hand wash, rinse and hang to dry, DO NOT MACHINE
WASH. Check the HEPA filter against the color shade guide on the filter frame
to see if replacement
is necessary. Filters and ultraviolet germicidal lamps should be replaced at least once every 12
months to provide optimal efficiency and performance. If your air quality is particularly poor, you may
need to replace more often.
After checking/cleaning/replacing filters, press and hold both the “FAN SPEED” and “AUTO” buttons
simultaneously for 3 seconds to reset the Check Filter indicator. The LED Display will briefly flash
“
CL
” to indicate that you have successfully reset it. Please note that whenever the “FAN SPEED”
and “AUTO” buttons are pressed simultaneously and held for 3 seconds, the Check Filter indicator
timer will be reset.
