From: ILPI Support <info**At_Symbol_Here**>
Subject: Re: [DCHAS-L] demolition of lab with osmium tetroxide contamination
Date: Mon, 5 Aug 2013 17:10:28 -0400
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: 3C2BD305-E3B1-4BC1-BE7A-087348E8338F**At_Symbol_Here**

Not an expert at that, but for the hood I'd go with a full face supplied air respirator.  While it's unlikely there is anything volatile remaining, OsO4 attacks the corneas and I would not rely on a cartridge which probably has not been tested against Os4.

Rob Toreki

Safety Emporium - Lab & Safety Supplies featuring brand names
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On Aug 5, 2013, at 3:29 PM, Ellen M. Sweet <ems325**At_Symbol_Here**CORNELL.EDU> wrote:

Hi everyone,
I'd like to know if anyone has dealt with the demolition of a lab and removal of a fume hood in which osmium tetroxide was used? Other than recommending respiratory protection (N100 or P100 cartridges), nitrile gloves and coveralls during tear-out, are there any other precautions we should keep in mind?
Thanks for any suggestions.
Ellen Sweet
Laboratory Ventilation Specialist
Department of Environmental Health and Safety
Cornell University

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