When used properly, ductless fume hoods can be an excellent choice. The Laboratory Safety Institute (LSI)published an article on ductless and ducted fume hoods in our Winter 2006-7 issue. It was written by F. Hauville of the Erlab Group. Erlab Group (_www.erlab.com_ (http://www.erlab.com/) ) is the international manufacturer of an excellent line of ductless fume hoods. LSI will be happy to send an electronic copy of the article to anyone who is interested. The article provides good insights into the alternatives and how to make a better decisions. Regards, ... Jim ------------------------------------------------------------------- In a message dated 7/6/2007 3:39:20 P.M. Eastern Daylight Time, melissa**At_Symbol_Here**melgetz.com writes: I have been asked to look into using a portable, ductless fume hood, and a ductless chemical storage cabinet for the chem lab. Do you have any experience with ductless systems? If so, please share your opinions, suggestions on which ones to get or not get, etc. Which filters should we buy? Do we really need a filter for organic materials? Do you know how often the filters would need to be replaced? The ductless fume hood is for regular chemistry classroom use. The chemical storage cabinet will be in a room separate from the classroom and will hold chemicals for chem., bio, and other science classes. If you need more clarifying information, please ask. Thank you in advance for helping out with this decision making process. Sincerely, Melissa Getz _Melissa**At_Symbol_Here**melgetz.com_ (mailto:Melissa**At_Symbol_Here**melgetz.com) ----------------------------------------------------------------- James A. Kaufman, Ph.D. President/CEO Laboratory Safety Institute (LSI) Safety in Science and Science Education 192 Worcester Road, Natick, MA 01760 508-647-1900 Fax: 508-647-0062 Cell: 508-574-6264 Email: jimkaufman**At_Symbol_Here**labsafety.org Web Site: _http://www.labsafety.org_ (http://www.labsafety.org/) Making Health, Safety and the Environment an Integral and Important Part of Education, Work and Life. ************************************* ************************************** See what's free at http://www.aol.com.
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