To read about the outcome of using face masks instead of plastic bags in self-deliverance from a terminal illness, read this paper in the Journal of Medical Ethics about testing done in Switzerland.
J Med Ethics 2010;36:174-179 doi:10.1136/jme.2009.032490
* Law, ethics and medicine
Assisted suicide by oxygen deprivation with helium at the Swiss
right-to-die organisation, Dignitas.
1. Russel D Ogden1, 2. William K Hamilton2, 3. Charles Whitcher3
Go to this link to read an abstract of their findings:
http://jme.bmj.com/content/36/3/174.abstract
so, i am glad i found this site and blog