1. Press the switch for 2 seconds, the device starts working (the first default mode is to commonly remove formaldehyde, disinfect and deodorize), the buzzer will drip for one time with one blue indicator lights, and the device will automatically shut down after working for 30 minutes.
2. Touch the switch again to start the second mode (deeply remove formaldehyde, disinfect and deodorize), the buzzer will drip for one timewith two blue indicators light, and the device will automatically shut down after working for 60 minutes.
3. Touch the switch again, the buzzer drips for one time and the device is off.
A: Low power tip: two red indicator lights flicker and the buzzer drips intermittently with 5 times per second.
B: While charging, the red indicator light intermittently flickers every 1.5 seconds.
C: While charging and working on the same time, one red indicator light is constantly bright in the first mode and two red indicator lights are constantly brightin the second mode.
D: When fully charging, two green indicator lights are constantly bright.
5. When ABBEY is working, the boomer goes off three times every five minutes to remind users ABBEY is working, and it's also for warning people and animals to keep out from the work area.