How can you prevent carbon monoxide from harming someone's health?

To safeguard health from carbon monoxide exposure, it's essential to avoid allowing vehicle engines to run in enclosed spaces, such as a garage, especially when the windows are closed. In such conditions, the carbon monoxide produced by the engine can build up quickly, leading to dangerous concentrations of this colorless and odorless gas.

Leaving a vehicle running in a closed garage creates a risk not only for the person in the car but also for anyone else nearby, as the toxic fumes can seep into living spaces. Adequately ventilating the area where a vehicle is running is crucial for preventing harmful inhalation of carbon monoxide.

While other options imply practices that may limit exposure, they can still lead to situations where the risk of carbon monoxide poisoning exists. For instance, using a vehicle heater with the windows closed or parking in an enclosed garage with the engine on can contribute to dangerous levels of CO. Therefore, the best option to ensure safety is to never leave a running vehicle in a closed garage, ensuring necessary precautions against carbon monoxide buildup are taken.