Unusual items found in the German ventilation device

• Device for removing condensation from a windscreen
• Heater that removes mist from the windshield of a car

Wikipedia Word definitions in Wikipedia
A demister is a substance applied to transparent surfaces to stop them from becoming fogged with mist deposit, often referred to as fog. Scuba divers often spit into their masks and then wash the surface quickly with water to prevent mist buildup that can ...

Wiktionary Word definitions in Wiktionary
n. 1 A part of the ventilation system in motor cars that blows hot, dry air against the inside of a windscreen to prevent, or remove condensation 2 Any of various devices that removes droplets of water from air

WordNet Word definitions in WordNet
n. heater that removes mist from the windshield of a car