THAT is probably where people hear it's humane. That also makes me think that that specific tactic of it is, but I'm unsure just how many people do it that way.
I seem to fail at finding those. You or anyone else have some posted somewhere?
I never thought of that. However, isn't keyboard cleaner chemicals, and not Co2?
Same here, no matter how Co2 is done. It's not instantaneous like CD.