This website requires certain cookies to work and uses other cookies to help you have the best experience. By visiting this website, certain cookies have already been set, which you may delete and block. By closing this message or continuing to use our site, you agree to the use of cookies. Visit our updated privacy and cookie policy to learn more.
This Website Uses Cookies By closing this message or continuing to use our site, you agree to our cookie policy. Learn MoreThis website requires certain cookies to work and uses other cookies to help you have the best experience. By visiting this website, certain cookies have already been set, which you may delete and block. By closing this message or continuing to use our site, you agree to the use of cookies. Visit our updated privacy and cookie policy to learn more.
Fume hoods have long been used to protect workers from breathing in harmful gases and particles. Because they are on 24 hours a day and pull air through the open window-like face (the sash) at around 100 fpm, fume hoods are energy-intensive devices. The research, that began in 1995 at Lawrence Berkeley National Laboratory (LBNL), has led to an improved fume hood that provides better protection to the user at one-half the energy use.
Between 500,000 and 1 million hoods are in use in the United States, so aggregate energy use and savings potential is significant. The annual operating cost of U.S. fume hoods ranges from $1 billion to $2 billion, with a corresponding peak electrical demand of 2,300 to 4,600 MW.