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Subject: [DCHAS-L] Ventilation Contaminated with Perchlorates
Date: Monday, March 7, 2022 at 2:49:12 PM
Author: Kelsey Mesa <kmesa26**At_Symbol_Here**GMAIL.COM> 		Next by Date:
Subject: Re: [DCHAS-L] Ventilation Contaminated with Perchlorates
Date: Mon, 7 Mar 2022 14:55:43 -0600
Author: Harry Elston

From: Mary Ellen A Scott <mas35**At_Symbol_Here**CASE.EDU>
Subject: [DCHAS-L] Spring Cleaning -Chemical Fume Hoods
Date: Mon, 7 Mar 2022 15:43:45 -0500
Reply-To: ACS Division of Chemical Health and Safety <DCHAS-L**At_Symbol_Here**Princeton.EDU>
Message-ID: CAKoY-_zw0NA66ByA4krzsd0XV7nqm=WptKWCZqU0oKe4m9JwUg**At_Symbol_Here**mail.gmail.com


Hello Everyone,

Only 13 more days till Spring!

That being the case, let me ask about Spring Cleaning for chemical fume hoods and energy savings.

Would anyone have data on energy saving for cleaning exhaust ducts and, importantly, cleaning behind the hood baffles?

Does anyone have data on the cost of cleaning behind the fume hood baffles?

One energy report from NADCA claims duct cleaning alone, not including the air handler or coils, improved CFM in a residential setting by 6.9%. And the same report claims a 54% CFM improvement for commercial environments.
Link: https://nadca.com/sites/default/files/fieldtestingfindings.pdf

Any thoughts would be appreciated. And thanks for your time,

Mary Ellen

--
Mary Ellen Scott, Ph.D.
Safety Specialist II, Certified Safety Professional
Certified Industrial Hygienist
Case Western Reserve University
EHS - Environmental Health and Safety
Service Building 1st Floor Rm 113
2220 Circle Dr.
Cleveland, OH 44106-7227
216-368-6077
216-368-2236 (Fax)
maryellen.scott**At_Symbol_Here**case.edu
"There is no science without fancy and no art without fact" =E2=80" Vladimir Nabokov, (1899-1977).

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