From: Janet Baum <baum.janet**At_Symbol_Here**GMAIL.COM>
Subject: Re: [DCHAS-L] Fume hoods
Date: May 16, 2013 11:29:40 AM EDT
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: <864BD2AA7ACA3B4185B8CF3C5DD3EC2C2E60ED29**At_Symbol_Here**>

Dear Andrea, I suggest reading Chapters 4, 5, 16, and 32 in the 4th edition of Guidelines for Laboratory Design: Health, Safety, and Environmental Considerations by DiBerardinis, et al, 2013, published by Wiley.

Chapters 4 and 5 cover in detail laboratory and lab building renovations. Chapter 16 discusses teaching laboratories, including those for general and organic chemistry. Chapter 32 is an excellent resource for learning about and evaluating chemical fume hood options. You may find much of the information you requested and in considerable detail in this book. Good luck to you and your project.
Janet Baum, AIA, DivCHAS
Washington University in St. Louis

On Thu, May 16, 2013 at 9:10 AM, Voehringer, Andrea <AVOEHRINGER**At_Symbol_Here**> wrote:

We are small college currently in the planning stages of a lab renovation. We are converting from one large general chemistry lab and one small organic lab to a new large multi-purpose chemistry lab( only 1 chem professor at our school). We will mainly run 3 sections of gen. Chem , 1 section of organic and 1 section of 100 level physical science per semester and those will be the courses taught from the new lab space. My questions are:

1. What is everyone's experience with vertical sash versus combination sash in fume hoods? From my experience the problem with the vertical sash is the student never places the sash to the proper height( yes, even with clearly marked height levels and explanation of use) . Do the combination sash with lockable panels help with the miss use by student ? Are there other problems associated with combination sash or vertical sash?

2. What is everyone's experiences with high performance fume hoods verse Bypass fume hoods? Our chemistry professor feel =96"high performance, low velocity fume hoods do not seem to work as well in heavy duty organic labs where a lot of fumes are generated." Of course, the school want the energy efficiency of a high performance, but I want to recommend the best overall. I have been told that our chem professor's experience was due to improperly maintained fume hoods(not balanced with room environment, HVAC etc.) and spillage caused these issues. Please provide me some advice

Thank you

Andrea Voehringer


Bluefield State College

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