From: Ken Simolo <simolo**At_Symbol_Here**CHEM.CHEM.ROCHESTER.EDU>
Subject: Re: [DCHAS-L] Ductless fumehoods or Not.
Date: Wed, 19 Mar 2014 07:15:38 -0400
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: 7702CD07-30AE-4909-9C2E-6BD81BF3A375**At_Symbol_Here**
In-Reply-To <69881DF9-8297-4595-A563-78CA5987C952**At_Symbol_Here**>

There can be no blanket "Ductless hoods are great or terrible" answer. It depends upon the type of ductless hoods and the work being done. Green Hoods can be a very appropriate solution for some/many of the hoods in a room, especially in an undergraduate lab situation. But they do require an understanding of what they are appropriate for and good labeling and training. When you have control over the chemicals used in a lab, Green Hoods can be an extremely good solution.


On Mar 18, 2014, at 6:59 PM, Richard W. Denton wrote:

> Hi everyone:
> I was asked by my department to assist in deciding whether to purchase ductless fumehoods for our undergraduate chemistry labs. We are planning to use these for flammable solvents, and reactions involving HCl and NaOH. These hoods will be used by undergraduates for research also. Any input on the safety issues involved with these equipments versus the regular hoods would be appreciated.
> -Richard (CHO)

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