At what CO level (in PPM) shall carbon monoxide activate the required alarms?

The correct answer is 10 PPM for activating alarms related to carbon monoxide. This level is critical for safety because carbon monoxide is a colorless, odorless gas that can be harmful or even fatal at high concentrations. Alarms are mandated to activate at this threshold to ensure timely alerts to occupants, allowing them to take necessary actions to evacuate or address the source of the gas.

Setting alarm thresholds at 10 PPM aligns with safety guidelines established by health organizations and regulatory bodies, which emphasize the importance of early detection to prevent health risks associated with carbon monoxide exposure. Lower thresholds ensure that there is a safety buffer, allowing individuals to react before reaching more dangerous levels.

Understanding these alarm levels is crucial for medical gas installers as part of their responsibility to maintain safe environments, especially in healthcare settings where vulnerable populations may be present.