You're talking to one of them. My landlord, unbeknownst to me, was replacing his furnace under one of those freebie government programs. I woke up out of a dead sleep in my room and ran out, telling my landlord that there was a carbon monoxide leak going on. We spent the next five minutes arguing about whether or not you can smell carbon monoxide when the CO detectors went off. That's when I learned about the furnace replacement. The furnace guy of 20 years experience was convinced.

Besides, you won't find anyone wanting to do this study because no one wants to spend money on it. Unless, you are, willing to pay for it. Now you may not believe my observation, but may I ask you, who did the original research about CO's odorless status? Don't be surprised if it was over 100 years ago.

Besides, do you always trust what the government tells you? I worked for the federal government, and I was appalled at what they publicly said vs what they mention to each other in interdepartmental memos.