For the demo prototype there are four modes. In normal usage, the airflow rate (and thereby noise and power consumption) will be closer to 25%.
To turn on the mask hold the on/off button for around half a second.
To rotate through settings, press the on/off button.
Blue LEDs: Air Flow Low (25%)
Green LEDs: Air Flow High (75%)
Red LEDs: Air Flow Medium (50%)
White LEDs: Air Pressure Sensor Mode .
We recommend that you use this mode for the best efficiency and longer battery life.