3 ms·

I just got some combo smoke and carbon monoxide detectors that say replace every 7 years, so perhaps 8 years isn’t that bad?

• quesera 6y ago
  Received wisdom: Don't buy combination smoke & CO detectors. Smoke rises, so detectors are best placed on or near the ceiling. CO sinks, so detectors are best placed a few feet above the ground. Considering the importance of early notification of either condition, these requirements appear irreconcilable.
  • gene91 6y ago
    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...
    • quesera 6y ago
      Thank you for the correction!
• rini17 6y ago
  What, phones are dangerous to rely on after 7 years?