Quote:
Originally Posted by khorboth
Quite true. I talked with someone who nearly killed himself and a friend with asphyxiation. They were in an ice fishing hut and were using a propane heater. After about 90 minutes, they were just sleepy and starting to droop a little. A lightbulb went off, and one of them unzipped the door. Once outside, they perked up nearly instantly. After that, they remembered to open the little vent flaps and were fine.
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That was probably carbon monoxide poisoning, not just low oxygen levels.