| 摘要 |
A ventilation or aeration device comprising an air vent for warm and/or fresh air. When used in a vehicle the device may serve as a window defogger by blowing warm air as well as a ventilator. In normal operation the vent may be manually manipulated as desired. When used as a defogger, opening of the warm air passage automatically directs the vent towards the window to be defogged or defrosted.
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