How many hours in a closed car will lead to suffocation?
2 Answers
Without turning on the air conditioning, one can stay in a car for approximately 4 hours. After that, oxygen deprivation will begin, leading to suffocation quickly. Below is relevant information about automotive safety: Active Safety: Active safety refers to the ability to control and maneuver the car as smoothly as possible. Whether it's braking and accelerating in a straight line or turning left and right, the car should operate smoothly without deviating from the intended path and without affecting the driver's visibility and comfort. Such a car naturally has a higher ability to avoid accidents, especially in emergency situations, ensuring safety. The active safety system generally includes the following components. Safe Driving: It should be noted that automotive safety is increasingly becoming a comprehensive issue that requires integrated consideration. Both active and passive safety systems are trending towards integration. Experts remind that, apart from the car itself, without good driving habits, the driver can become a safety hazard, even rendering safety features ineffective. For example, not wearing seat belts, drunk driving, speeding, etc., if a dangerous situation occurs, it has nothing to do with the vehicle's safety features. Therefore, safety awareness is the key to safe driving.
This issue reminds me of a case I encountered while repairing cars. Being enclosed in a vehicle is indeed dangerous due to poor air circulation, oxygen depletion, and carbon dioxide buildup. How long does it take? It's hard to say precisely, but it depends on the situation: small cars like sedans have limited space, and if a person sits still, they might feel dizzy only after one or two hours. However, the risk is much higher with children or pets due to their faster metabolism. Hot weather makes it worse—with temperatures soaring inside a sun-exposed car, oxygen deprivation and heatstroke can occur in less than half an hour. Experts advise never taking the risk of staying inside, even for a few minutes, as accidents can happen. Always check if windows are slightly open when parking, educate family members not to play with door locks, and keep safe driving in mind at all times. If someone is trapped inside a car, break the window or seek help immediately without hesitation—life is precious. Overall, there are too many factors involved, including the car's interior volume, temperature, and physical condition, but the safety principle remains consistent.
