From: ILPI Support <info**At_Symbol_Here**>
Subject: Re: [DCHAS-L] Rotovaps and ventilation
Date: Tue, 22 Sep 2015 12:22:18 -0400
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: CFF11BBA-1661-4517-A6B8-1D6913EC244A**At_Symbol_Here**

Unless you're in a magical world where hood space is more widely available than PAC money, I'd have to say that safety/ventilation etc. is way down the list for most PI's.  In many all of the labs I've worked in, hood space is too valuable (i.e. scarce) to take up with a rotovap, and a rotavap setup is so bulky and difficult to move it would impractical to move it into a hood if you had something really nasty.  In that case, we'd instead remove the solvent with a vacuum/Schlenk line that is already in the hood.

That said, one should always set up proper traps, pumps, venting and safety shields for rotavaps used on an open bench top.  I assume various places have SOP's for that. 

Rob Toreki

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On Sep 22, 2015, at 9:16 AM, "Stuart, Ralph" <Ralph.Stuart**At_Symbol_Here**> wrote:

Random question for the morning:
What factors determine whether a rotovap should be used in a hood or not?

Thanks for any feedback on this.

- Ralph

Ralph Stuart, CIH, CCHO
Chemical Hygiene Officer
Keene State College


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