true but they often measure it in % of normal
e.g. having done a fair bit of scuba I know that when the partial pressure of oxygen reaches 100% of normal air, you die.
(simbosanis too tired, Wed 30 Jan 2019, 8:16,
Reply)
Share to
Hide / Ignore
Hide
If you want to unhide this post later, click the "update profile" link in the top navigation bar, and scroll down to the bottom.
Ignore
You will be blisfully unaware of this user for just one week