Working with carbon dioxide (CO2) fire suppression systems requires strict adherence to safety protocols, especially in confined spaces, because CO2 is an asphyxiant that can displace oxygen and create a life-threatening environment. Before entering a space protected by a CO2 system, it's crucial to ensure the system is disabled and cannot discharge accidentally. This involves locking out and tagging out the system controls to prevent unauthorized activation. Secondly, verify the CO2 concentration in the space using a CO2 meter before entry. CO2 concentrations above 1.5% can cause drowsiness, and higher concentrations can lead to unconsciousness and death. The space must be thoroughly ventilated t....
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