S
suffering_mo
Specialist
- May 8, 2024
- 378
@Tears in Rain and anyone else.....How are these inner pieces of the hoods held on tight onto the face to keep any oxygen out and give a good "seal" like what is needed for nitrogen?Are you looking at a hood from one of the Chinese websites, like in Vizzy's EEBD hood guide? He ctb'd with those yellow EEBD hoods.
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Are you worried about the nitrogen/inert gas escaping out the fabric?
Both the inner mask and hood itself will be full of nitrogen. Any oxygen initially in the hood will be pushed out by the nitrogen.
Once you pass out, the inner mask will still be snugly against your mouth.
See pics of hood inner masks:
Chinese Alibaba hood:
View attachment 131306View attachment 131305
Draeger CF:
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Scott ELSA:
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