Haber Fog Eliminator has three settings; On, Off, and Automatic. When placed in automatic mode the eliminator automatically senses the humidity level of your goggle lens and activates a tiny fan before your goggle starts to fog. Warm moist air is removed from the goggle and when removed, the fan turns off automatically

Universal design works with almost all brand goggles

Removes humidity rather than blowing in air.

We used it once. It works.