DCHAS-L Archives · Post dated December 13, 2020

Re: [DCHAS-L] NIOSH Technical Report P/N 2021-107: Filtering Facepiece Respirators with an Exhalation Valve: Measurements of Filtration Efficiency to Evaluate Their Potential for Source Control

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Date: Dec 13, 2020 21:35 UTC

Author: Stuart, Ralph <Ralph.Stuart**At_Symbol_Here**KEENE.EDU>

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From: NEAL LANGERMAN <neal**At_Symbol_Here**CHEMICAL-SAFETY.COM>

Subject: Re: [DCHAS-L] NIOSH Technical Report P/N 2021-107: Filtering Facepiece Respirators with an Exhalation Valve: Measurements of Filtration Efficiency to Evaluate Their Potential for Source Control

Date: Dec 13, 2020 22:10 UTC

Reply-To: neal**At_Symbol_Here**CHEMICAL-SAFETY.COM

In-Reply-To: Re: [DCHAS-L] NIOSH Technical Report P/N 2021-107: Filtering Facepiece Respirators with an Exhalation Valve:…

Demystify:

Agree .. Waldo is a much better word. Who remembers the Heinlein story it was first used in?

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Re: [DCHAS-L] NIOSH Technical Report P/N 2021-107: Filtering Facepiece Respirators with an Exhalation Valve: Measurements of Filtration Efficiency to Evaluate Their Potential for Source Control

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