The fan 1500 DH is equipped with a humidity sensor, which you can set in the range between 40 and 90 % relative humidity. The fan switches on automatically as soon as the air humidity exceeds the set threshold. This provides additional comfort and prevents mold formation in the bathroom. You can easily switch the fan on and off at any time using the bathroom light switch. In addition, you can set a delay time by setting it once so that the fan continues to run for up to 30 minutes after the bathroom light is switched off and then switches off automatically. The fan in modern Bosch design with easy to clean plastic front fits perfectly with all bathroom facilities.This text is machine translated.