Old style, current-issue MOPP gear, all require the user to have a clean-shaven face so that a good seal around the edges can be attained. 'tis why Gillette got so big, they were the primary US razor supplier for WWI, specifically so that the soldiers could keep their faces clean and have a properly functioning mask. I have a set of MOPP myself, and I can tell you that even with a -tiny- amount of stubble, you're gunna be chokin' on CS the next chemmy drill you've got. Old style stays sealed throughout breathing, MOPP seals get tighter around the face as you inhale. If the rubber rests on stubble or hair, inward hairline gaps appear when you breathe in and the negative pressure of inhalation will literally 'pull' the agent inside of the mask.
But that's for real, not decorative. Decorative it doesn't matter much. :P
![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png)
timeasmymeasure
no subject
Date: 2006-12-13 11:23 pm (UTC)Old style, current-issue MOPP gear, all require the user to have a clean-shaven face so that a good seal around the edges can be attained. 'tis why Gillette got so big, they were the primary US razor supplier for WWI, specifically so that the soldiers could keep their faces clean and have a properly functioning mask. I have a set of MOPP myself, and I can tell you that even with a -tiny- amount of stubble, you're gunna be chokin' on CS the next chemmy drill you've got. Old style stays sealed throughout breathing, MOPP seals get tighter around the face as you inhale. If the rubber rests on stubble or hair, inward hairline gaps appear when you breathe in and the negative pressure of inhalation will literally 'pull' the agent inside of the mask.
But that's for real, not decorative. Decorative it doesn't matter much. :P