Carbon monoxide

A full read

Before we start

This is general information, not professional advice. It cannot replace a doctor, a firefighter, or your local rules. If you think someone is being poisoned, get to fresh air. In an emergency, call 911. That number works in the US and Canada.

Sources

CDC — Carbon Monoxide Poisoning Basics
CDC — CO Poisoning Fact Sheet
CPSC — Carbon Monoxide Fact Sheet
CPSC — CO Alarms
CPSC — What to Know About Generators and CO
US Fire Administration
Health Canada / Parachute Canada — Carbon monoxide
Canadian Red Cross — What you need to know about carbon monoxide
StatPearls / NCBI — Carbon Monoxide Toxicity

Read end to end and corrected: August 9, 2026. Numbers checked: August 9, 2026.