From: Bruce Van Scoy <brucev**At_Symbol_Here**BRIGHT.NET>
Subject: Re: [DCHAS-L] laminar flow hood purchase
Date: Fri, 8 Nov 2013 18:19:05 -0500
Reply-To: DCHAS-L <DCHAS-L**At_Symbol_Here**MED.CORNELL.EDU>
Message-ID: 024d01cedcd8$eb910700$c2b31500$**At_Symbol_Here**
In-Reply-To <99792493cc4f4c859fb2a145f25db4f6**At_Symbol_Here**>

One quick word of caution for the future... make sure that both are clearly
labeled and an SOP is in place that clearly defines the limitations of each
with examples of proper use. I have basically eliminated the use of laminar
flow hoods. Bought with the right application in mind, but over time
personnel forget, change, etc. and the next thing you know you have an
"engineering control" installed that you'll have to be citing over and over
to limit its use. Just my opinion from experience only,

-----Original Message-----
From: DCHAS-L Discussion List [mailto:dchas-l**At_Symbol_Here**MED.CORNELL.EDU] On Behalf Of
Lori Keen
Sent: Thursday, November 7, 2013 1:48 PM
Subject: Re: [DCHAS-L] laminar flow hood purchase

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
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
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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