Coway AP-2021A Gray User Manual page 19

How to use manual mode
Press the speed button to select air speed.
Level 1→ Level 2 → Level 3
＊ Manual operation operates only in smart mode operation and eco mode.
How to use turbo mode
Press the power button to turn on the product and press the clean mode
button to select turbo.
How to use silent mode
Press the power button to turn on the product and press the clean mode button to select silent mode.
This mode minimizes the air speed during operation for a silent and pleasant environment.
＊ If silent mode is selected, directional airflow panel is closed and changes to 4-direction discharge.
At this time, the circulation mode indicator lights are all turned off.
How to use
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