Pause detect is always on, unless a diffuser attachment is connected. It uses a motion sensing accelerometer to know when the hair dryer stops moving – automatically cutting heat and minimising airflow.
So that Pause detect only activates when the machine is put down – and not for every momentary pause while styling – we deliberately programmed in a fractional delay of 240 milliseconds. To be sure Pause detect has activated, wait for the motor sound to ramp down before lifting your hand off the hair dryer.