That's a myth according to this article [1] from a well known US brand of alarms. [1] https://support.firstalert.com/s/article/Where-to-install-CO-alarms https

That's a myth according to this article [1] from a well known US brand of alarms. [1] https://support.firstalert.com/s/article/Where-to-install-CO-alarms https://support.firstalert.com/s/article/Where-to-install-CO...