And to agree with both of you but back to the subject of a CPR *mask* - seriously folks, in the really unlikely event that CPR were do to a darn bit of good in the backcountry (i.e. usually in a submersion situation) gimme a break. I'll just take my chances on the liplock.. rather than carry some ridiculous and maybe only marginally effective mouth condom.

If you're dead otherwise I'll take my chances on whatever you've got... and you whatever I've got.