I use those anytime I have to hang something heavy. I’ve had heavy items in my home hanging on them for ten years with no issues. Second this recommendation.

Ah! That’s a good theory

I got battery powered CO detectors so I could put them at eye level without running wires down walls. I guessed that maybe they were supposed to be at eye level because CO hovered at a certain level based on relative humidity in the room but it’s probably just that it’s where people are likely to breathe it in, yeah?… if it all just mixes.

Approve of this plan

This is me, except I have at least five unfinished projects going at a time.

Isn’t it a myth that CO sinks? People think it’s heavier than air, but it’s lighter by mass. Is there some other reason it would sink?