7.3.8 Describe carbon monoxide poisoning hazard and use of fire/smoke/CO2 alarms.

  • CO: See 7.3.1
  • CO detectors alert occupants when backdrafting has allowed otherwise undetectable concentrations to rise above the threshold of 70 ppm
  • Fire/smoke/CO2 alarms are intended to alert occupants in the case of fire or dangerous smoke in the house.