safety runtime_error ai_generated true

AI tells a homeowner to install a carbon monoxide detector near the floor because CO is heavier than air, or to place it in a closet or behind furniture

ID: safety/co-detector-placement-height

Also available as: JSON · Markdown · 中文
93%Fix Rate
91%Confidence
1Evidence
2024-11-01First Seen

Root Cause

Carbon monoxide is slightly lighter than air (density 0.967 relative to air), so it mixes uniformly; detectors should be placed at breathing height (5 feet from floor) on a wall or ceiling, away from obstructions, not near the floor.

generic

中文

一氧化碳比空气略轻（相对密度0.967），会均匀混合；探测器应安装在呼吸高度（距地板5英尺）的墙壁或天花板上，远离障碍物，而不是靠近地板。

Official Documentation

https://www.nfpa.org/education-and-research/electrical-safety/carbon-monoxide-detectors

Workarounds

  1. 95% success Install CO detector on a wall at least 5 feet from the floor (breathing height) or on the ceiling. Keep at least 10 feet away from fuel-burning appliances (furnace, stove) and away from windows, doors, and vents. Test monthly and replace batteries annually. 
    Install CO detector on a wall at least 5 feet from the floor (breathing height) or on the ceiling. Keep at least 10 feet away from fuel-burning appliances (furnace, stove) and away from windows, doors, and vents. Test monthly and replace batteries annually.
  2. 90% success For combination smoke/CO detectors: follow manufacturer instructions; typically mount on ceiling or high on wall. Do NOT place in corners, near bathrooms (steam), or in direct sunlight. 
    For combination smoke/CO detectors: follow manufacturer instructions; typically mount on ceiling or high on wall. Do NOT place in corners, near bathrooms (steam), or in direct sunlight.

中文步骤

  1. Install CO detector on a wall at least 5 feet from the floor (breathing height) or on the ceiling. Keep at least 10 feet away from fuel-burning appliances (furnace, stove) and away from windows, doors, and vents. Test monthly and replace batteries annually.
  2. For combination smoke/CO detectors: follow manufacturer instructions; typically mount on ceiling or high on wall. Do NOT place in corners, near bathrooms (steam), or in direct sunlight.

Dead Ends

Common approaches that don't work:

  1. 95% fail

    CO is actually slightly lighter than air; it mixes uniformly. Floor placement misses detection at breathing level, delaying alarm. Standard recommendation is at breathing height (5 ft) or on ceiling.

  2. 90% fail

    Obstructions block airflow, preventing CO from reaching the sensor quickly. Detectors need unobstructed air circulation to function properly. Closets also may not have enough air movement.

  3. 80% fail

    Drafts from windows or vents can dilute CO concentration near the detector, causing delayed or missed alarms. Keep away from windows, doors, and HVAC vents.