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- DictionaryFume hood/fyo͞om ho͝od/
noun
- 1. a ventilated enclosure in a chemistry laboratory, in which harmful volatile chemicals can be used or kept. US
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- Fume hood
Laboratory negative-pressure ventilation device
A fume hood (sometimes called a fume cupboard or fume closet) is a type of local exhaust ventilation device that is designed to prevent users from being exposed to hazardous fumes, vapors and dusts. The device is an enclosure with a movable sash window on one side that traps and exhausts gases and particulates either out of the area (through a duct) or back into the room (through air filtration), ... Wikipedia
