I saw it again today: “Ventilation is the largest user of energy in labs:  One fume hood is the equivalent of 3 households”

I have never questioned this. In fact, I teach it & it makes people sit up & pay attention (when we look around at 6 hoods in one lab, then think about how many labs we have on campus!)

Now I need to ask – does anyone have a source for this item? How old is it? Is it still true? Is there a new number/estimate to account for VAV hoods?

Sheila M. Kennedy, C.H.O.

Safety Coordinator | Teaching Laboratories

Chemistry & Biochemistry |University of California, San Diego

9500 Gilman Dr. | La Jolla, CA  92093-0303

( (858) 534 – 0221 | 2   (858) 534 – 7687

s1kennedy**At_Symbol_Here**ucsd.edu | http://www-chem.ucsd.edu