Fume Hoods

A fume hood is a ventilated enclosure in which gases, vapours and fumes are contained. An exhaust fan situated on the top of the laboratory building pulls air and airborne contaminants through connected duct work and exhausts them to the atmosphere. The purpose of a chemical fume hood is to preve read more...nt the release of hazardous substances into the general laboratory space by controlling and then exhausting hazardous and/or odorous chemicals. show less

District of Columbia, US