Carbon Monoxide (CO)

Carbon monoxide is similarly weighted to air; therefore, sensors should be mounted between 1.6 and 1.8 meters from the floor, ideally within the breathing zone.

Key Considerations:

• Installation Tips: Avoid placing CO detectors near ventilation systems or drafty areas, as airflow can dilute the concentration of CO, leading to inaccurate readings. Regular maintenance and testing are essential to ensure the detectors are functioning properly.
• Height Placement: Placing in this height range ensures that the detector can effectively sense CO levels where people are likely to breathe, enhancing safety and response times in case of a leak.

The number of carbon monoxide gas detectors required for a specific area depends on several factors, including the size of the space, ventilation, and the potential sources of gas leaks. While there are no one-size-fits-all guideline, CO detectors are often considered to have a maximum coverage area of 10 meters radius from the detector, following are some general recommendations you should consider :

Key Considerations:

• Room Size and Layout: Larger spaces may require multiple detectors to ensure coverage, especially if the room has separate sections or obstacles like walls.
• Potential Sources: CO is produced by oxygen-starved, incomplete combustion in improperly ventilated, fuel-burning appliances. Common sources include gas fired appliances, vehicle exhausts, water heaters, wood and coal burners, and barbecues.
• Airflow and Ventilation: Poorly ventilated areas may need more detectors, as gas can accumulate more easily. Conversely, in well-ventilated spaces, gas may disperse, but still requires detection near potential leak points.

Carbon monoxide (CO) is slightly lighter than air. The relative density of CO compared to air is about 0.97, meaning it disperses fairly evenly in the air. However, because of this, carbon monoxide detectors are typically installed at head height, such as on a wall in living spaces or near potential sources of CO, rather than relying on ceiling or floor placement.