Des Moines, IA –  “Two men were working on a car in a garage…Earlier, they fixed an issue with a gas furnace in the garage…one man was later treated at hospital for carbon monoxide poisoning, firefighters found the other man dead in the garage…If you’re going to do any work on an HVAC system, make sure qualified personnel are working on it.”

https://www.desmoinesregister.com/story/news/2020/05/08/man-dead-carbon-monoxide-poisoning-des-moines/3094956001/?fbclid=IwAR1BetNdXsOcYuzBYQQMKrjzrjqfK3IkFrTmmsYvcGDO8RzRMGMqTH4y5QA