Coway Airmega AP-1220B Instructions Manual page 17

ADJUST PARTICLE SENSOR
How to adjust the sensitivity of the particle sensor
When you operate the product for the first time, the pollution sensor is set at the standard
sensitivity. If the pollution level indicator remains at High after the air purifier operates for
more than two hours where the pollution level is high, or if the pollution level indicator
remains at Clean for more than one hour where the pollution level is high, you can adjust the
sensor's sensitivity as follows.
1. Press the Mode button and the Air Volume button
simultaneously for longer than 2 seconds while the
product is operating.
2. The air volume mode indicator flashes at an approximately
0.5 second interval.
3. Press the Air Volume button to adjust sensitivity of the
sensor. When the sensor's sensitivity is selected, the air
volume mode indicator flashes as shown below.
Level 1
High
4. If you press the Air Volume button and the Mode button
at the same time for longer than 2 seconds, the selected
sensor sensitivity is entered and the product operates
normally.
∗ The selected sensitivity of the sensor is automatically entered if
the Air Volume button and the Mode button are not pressed for
10 seconds.
Level 2 Level 3
Standard Low
2 sec. 2 sec.
2 sec. 2 sec.
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