What Causes the Smell of Rotten Eggs Inside a Car?

[VanChristian]

Car interior smells like rotten eggs mainly due to hydrogen sulfide in the exhaust. It is normal for a car to have a slight rotten egg smell, as hydrogen sulfide is a primary component of automobile emissions that causes air pollution. The rotten egg smell from the exhaust often occurs when the car is cold or just started. During these times, the three-way catalytic converter is at a low temperature and has not reached its normal operating temperature, thus failing to perform its catalytic function, resulting in higher levels of hydrogen sulfide emissions. Information about the car's cabin air filter is as follows: 1. Introduction: The car cabin air filter is a specialized filter designed for air purification inside the vehicle compartment. It uses activated carbon composite filter cloth, which combines highly efficient adsorption material activated carbon with long-fiber non-woven fabric, featuring a compact structure. 2. Function: It can effectively filter out smoke odors, pollen, dust, harmful gases, and various odors. The filter also efficiently filters and adsorbs particulate impurities, achieving the performance of filtering oil and purifying the air.