[PSUBS-MAILIST] CO2

[Rick Patton via Personal_Submersibles]

Someone posted a while ago that they sat or layed in their sub until the
PPM got dangerous.
Can't remember who that was? Wanted to get more information from them if
possible.
Thanks

Rick
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://www.whoweb.com/pipermail/personal_submersibles/attachments/20250523/ce1bc44e/attachment.html>