For effective prevention of carbon monoxide poisoning, what should be regularly inspected?

Regular inspection of heating devices is essential for the effective prevention of carbon monoxide poisoning because these devices can produce carbon monoxide as a byproduct of combustion. This includes furnaces, water heaters, and space heaters that run on natural gas, propane, oil, or wood. If these devices are malfunctioning or improperly vented, they can lead to dangerous levels of carbon monoxide accumulating indoors, which is a silent and deadly gas.

By ensuring that heating devices are inspected regularly, potential hazards can be identified and addressed before they result in health risks. Proper maintenance, including checking for any blockages in vents, testing for leaks, and ensuring that devices are functioning correctly, significantly minimizes the risk of carbon monoxide exposure.

Other options, while important for their respective safety reasons, do not directly relate to the prevention of carbon monoxide poisoning in the same way. Oxygen masks are related to providing supplemental oxygen but do not mitigate the risks associated with carbon monoxide. Pressurization systems and water filtration systems are unrelated to carbon monoxide, as they serve different functions in safety and health but are not sources of this gas.