English - 6
Air Quality Monitor
• When this monitor blinks, it indicates the Air Quality Sensor is now preparing for
detection.
• The digital display will show the concentration of fine particulate matter (PM
2.5
) in the
environment in μg/m
3
.
• The index light will indicate the air quality category of the environment. According to the
Air Quality Index developed by the United States Environmental Protection Agency (EPA),
the index light corresponds to different levels of health concern as below:
Control Panel
Circuit Breaker
Air Quality Monitor
Power Switch
Speed Switch
Air Quality Sensor
Pressure Gauge
RE
SE
T
PRES
S
T
O
0
10
0
200
300
40
0
50
0
OFF
MAX
MIN
Air Quality
Good Moderate Poor
Circuit Breaker
Air Quality Monitor
Power Switch
Speed Switch
Air Quality Sensor
Pressure Gauge
RE
SE
T
PRES
S
T
O
0
10
0
200
300
40
0
50
0
OFF
MAX
MIN
Air Quality
Good Moderate Poor
Circuit Breaker
Air Quality Monitor
Power Switch
Speed Switch
Air Quality Sensor
Pressure Gauge
RE
SE
T
PRES
S
T
O
0
10
0
200
300
40
0
50
0
OFF
MAX
MIN
Air Quality
Good Moderate Poor
Circuit Breaker
If the machine stops working, pressing the
RESET BUTTON
to reset the machine.
Power Switch
• Turn to “
O
” position to switch the Air Scrubber OFF. Turn to “
I
” position to switch the Air
Scrubber ON.
Index Light
Levels of Health Concern according to the AQI by EPA
Green / Good
Good
Orange (Yellow) /
Moderate
Moderate or, Unhealthy for Sensitive Groups
Red / Poor
Unhealthy, or Very Unhealthy, or Hazardous
Summary of Contents for AP-2500D
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