Copy and paste about some things to be aware of when considering this method.
CO poisoning can cause long-term neurocognitive deficits, a potentially devastating injury estimated to impact up to 40% of survivors (
1).
Delayed movement disorders have been noted in 13% of 242 CO poisonings with parkinsonism (72%).
including frequent nonpurposeful movements, urinary and fecal incontinence, an inability to care for oneself, disorientation, and depressed consciousness
I'm just posting to point out some of the possible risks involved should it fail. I would not recommend it without having done good research and thourough planning.