Itena PureBoost Manual Del Usuario página 12

Stage 3
Turning on the thermal diffuser.
Switch the button on the thermal diffuser unit to 'ON' in order to start
the first 15-minute cycle.
The indicator light comes on to show that the diffuser is working
correctly. The diffuser will then gradually heat up to a temperature of
38°C within approximately 1 ½ min.
The cycle will stop automatically after 15 minutes.