The battery-powered Arctic Butterfly is switched on only to prepare it for cleaning — it must be switched off before actual cleaning begins.
A Fast, Easy Cleaning Process
Before applying the brush to the sensor, switch on the motor for a few seconds. This frees the brush of any dust, while also electrostatically charging the brush fibers. Next, turn the motor off, then move the brush across the sensor. Any dust that is on the sensor is completely lifted off the sensor electrostatically instead of being dragged along the sensor surface. In seconds, the sensor is completely dust-free!