The AER Dryer’s temperature is controlled by pressing up or down on the circle button. When the dryer is at maximum temperature, five lights should be visible at the top of the circle button. Note that the AER Dryer has less heat than a conventional hair dryer and may not reach the maximum temperature you are used to.
When the ColdShot mode is activated, by pressing on the ColdShot button above the circle button, only cold air will flow from the AER Dryer. To deactivate ColdShot, press the ColdShot button a second time.