1 Running

When the power is on, all of the LED lights will light up (the blue and red lights are flashing in circle 3 times), and goes into ventilation mode. It will go out in one minute if no button is pressed.

2 Filter Life Reminder

If the filter’s life is due, the corresponding red light will blink and there will be a voice warning. It will beep 3 times in each 1 hour, the filter red light will be light up for 1 second; after the filter is changed, the warning will be off.

3 Battery Life Reminder

The warning starts when the battery has 10% left. It will beep 3 times continually every 2 hours, and all the lights will shine in a circle from blue light, red light to ventilation mode light.

4 Reset Button

Under the condition of powering on, short press the reset button, go into filter function choosing, only the chosen filter light will be light up, press reset button in order, and the filter light will be chosen in order from 1-2-3-1, then long-press reset button (over 3s), the chosen filter will be reset.