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Air or Argon for suit inflation??  Pros and cons??  ICD issues?

Here is an article giving information regarding the thermal retention of Argon vs Air (Hi-mix ;D)



The advanced discussions has been lacking a bit lately, just thought I'd spark something...

Very interesting, I'm going to try using air now that I have a heater.  Just one more expense and hassle I don't need...  Also, if things got real crazy, 13 cf of air is more useful than 100cf of argon! >