From: Lori Keen <keel**At_Symbol_Here**CALVIN.EDU>
Subject: Re: [DCHAS-L] laminar flow hood purchase
Date: Thu, 7 Nov 2013 18:48:20 +0000
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: 99792493cc4f4c859fb2a145f25db4f6**At_Symbol_Here**
In-Reply-To <9F3B003643FC5F42930EFB83E276C8600252C434FF6A**At_Symbol_Here**HNXEXCH.hendrix.local>

Make sure that a laminar flow hood is really what s/he wants. People use the term "laminar flow" when they really mean Biological Safety Cabinet (BSC).
Laminar flow hoods ONLY protect product (whatever is in them) from contamination. They do NOT protect the worker from whatever biohazard (microorganism) they are using in the hood.
Most BSC's and laminar flow hoods are self-contained, not ducted and they work with a HEPA filter. The point of a laminar flow or BSC is NOT to remove vapors as a chemical fume hood does, but to keep "bugs" either out of the hood as in laminar flow or both in and out as in a BSC.

Lori Keen
Lab Manager, Biology
Calvin College
NAOSMM Vice President

I'd give up chocolate but I'm no quitter!!

-----Original Message-----
From: naosmm-bounces**At_Symbol_Here** [mailto:naosmm-bounces**At_Symbol_Here**] On Behalf Of Bradley, Shelly
Sent: Thursday, November 07, 2013 11:12 AM
Subject: [NAOSMM] laminar flow hood purchase

One of my faculty is interested in a laminar flow hood. I know nothing about them.
What do I need to know?
Are the self-contained ones any good?
Which brands are best?

Thanks for your help!!

Shelly Bradley
Authorized OSHA Trainer
Instrumentation Specialist
Laboratory Development Assistant
Campus Chemical Compliance Director
Department of Chemistry
Hendrix College
Conway, AR 72032
Ph: (501) 450-3812
Fax: (501) 450-3829

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