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14
OPERATION
PM Indicator Display
1. Press the
Indicator button to check the density of PM10/PM2.5/PM1.0.
• Pressing the button repeatedly toggles through to check the density of PM10 → PM2.5 →
PM1.0 in turn. The selected density displays for 10 seconds before the display reverts to the
highest measured PM (particulate matter) level.
2. Check the dust particle size LED indicators.
• PM density is displayed based on the dust density result with the highest contamination
level.
For example, if PM10 density is 100 (normal), PM2.5 is 50 (bad), and PM1.0 is 30 (normal),
the value for PM2.5 is displayed for PM density.
Air Quality Indicator Light
Overall indoor air quality is displayed as one of four colors depending on the contamination level
of PM10, PM2.5, PM1.0, and odors.
(contaminated) red → orange → yellow → green (clean)
• The color that the air quality indicator light displays is based on the worst level among PM10,
PM2.5, PM1.0, and odor.
Indoor Air Quality Levels
Overall
Status
air quality
Red
Very Bad
Orange
Bad
Yellow
Normal
Green
Good
h PM density ranges from 8 to 999 in increments of 1. PM density values follow the data
sheets provided by the sensor supplier.
(3sec.)
Reset
Speed
(3sec.)
Lighting
Dust density (unit μ g/m
PM 10
PM 2.5
Equal or above 255 Equal or above 56 Equal or above 56
155~254
36~55
55~154
13~35
0~54
0~12
Indicator
Sleep Timer
3
)
PM 1.0
36~55
13~35
0~12
Odor density
Odor
Strong
↕
Weak
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