From: dannyb@panix.com   
      
   In <10dkvga$n2b$1@reader2.panix.com> SURNAME@panix.removethispart.com (J.D.   
   Baldwin) writes:   
   [snip]   
      
   >The seal is never going to be perfect -- it's a lot stronger with a   
   >BVM (bag-valve mask, which you use to force air into the patient's   
   >lungs by squeezing a bag while someone else presses it against the   
   >patient's face). Still, I never really thought where that 10%-40% of   
   >room air is actually coming from, exactly. If you wore a NRB without   
   >an O2 line hooked up to it, and you kept it in place, I guess you   
   >*would* suffocate.   
      
   In ye oldyne daize, an unhooked non-rebreather-mask was a potential "treatment"   
   modality for someone experiencing "hyperventilation" and its associated issues.   
      
      
      
      
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   		     dannyb@panix.com   
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