How Long Does It Take to Suffocate in a Car?

[Wayne]

Cars are not completely sealed spaces, so they do not cause suffocation. Suffocation in a car primarily occurs due to the following reasons: 1. Carbon Monoxide: When a car's engine idles, incomplete combustion often produces a large amount of carbon monoxide. If the car windows are closed or the car is parked in a relatively enclosed space like a garage, the risk of poisoning increases significantly. 2. Excessive Temperature: If a sealed car is exposed to sunlight, after 30 minutes of exposure, the interior temperature can rise to 45.5°C (113.9°F), leading to symptoms such as difficulty breathing, dizziness, and nausea. When the human body temperature reaches 42°C (107.6°F), it may result in death.