INSIGHTS on Fume Hoods
Aside from safety, saving energy is the trend in fume hoods these days. Hoods are energy hogs that suck thousands of cubic feet of conditioned air per hour, 24 hours per day, out of buildings; replacement air must be heated or cooled depending on the season.
“Fume hoods are tremendously expensive to run,” notes Dana Dahlgren, VP of sales and marketing at Kewaunee Scientific (Statesville, NC). “The last decade has been all about fume hoods that are more efficient, that do not require the same air flow as older models.”
Facility managers increasingly specify variable air volume (VAV) systems for new buildings. VAV uses a combination of sensors and controls that ramp down exhaust in individual hoods according to demand.
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