### Comment:
You mean helium. It's actually called a helium mask and is a common enough way to opt out including in assured suicides.... The more you know 
  
  
  
  
 Edit- assured=assisted fucking auto correct

### REPLY:
Ohh okay, I thought it might be helium but I've heard that it can cause your lungs to collapse if you fill your lungs with it which sounds painful haha

### END.