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-rw-r--r--Documentation/user-manual.txt2
1 files changed, 1 insertions, 1 deletions
diff --git a/Documentation/user-manual.txt b/Documentation/user-manual.txt
index e5337b203..66d23b124 100644
--- a/Documentation/user-manual.txt
+++ b/Documentation/user-manual.txt
@@ -3607,7 +3607,7 @@ in the _Rates_ section of the dive setup.
pressure for oxygen needs to be specified for the
bottom part of the dive (_bottom po2_) as well as for the decompression part of the dive (_deco po2_).
Commonly used values are 1.4 bar for the bottom part of the dive and 1.6 bar for any decompression
-stages. Normally, a partial pressure of 1.6 bar is not exceeded. PO2 settings and the depth at which switching to a gas takes place can also be edited in the
+stages. Normally, a partial pressure of 1.6 bar is not exceeded. pO₂ settings and the depth at which switching to a gas takes place can also be edited in the
_Available Gases_ dialog. Normally the planner decides on switching to a new gas when, during
ascent, the partial pressure of the new gas has decreased to 1.6 bar.