What Causes Odors Inside a Car?

[MacJoel]

Unpleasant odors inside a car are most likely caused by a heavily contaminated cabin air filter. This is especially true if the car is frequently driven in dusty areas, where the air filter should be cleaned or replaced more often. If the filter is not replaced for a long time, it will not only emit a foul smell but also directly affect the health and safety of passengers. Below are other possible causes of odors in a car: 1. Odors from items inside the car: Smoking, eating, or placing unclean items in the car can produce odors. In such cases, simply opening the windows for ventilation can help. 2. New car smell: When a car is first manufactured, the plastic panels or rubber seals inside may still contain substances like formaldehyde, which can cause a noticeable odor. This is normal and will dissipate over time with regular use. 3. Air conditioning odors: If the air conditioning filter is not cleaned for an extended period, bacteria and dirt can accumulate. When air passes through these contaminants and circulates inside the car, odors will inevitably occur. In this case, cleaning the air conditioning filter should resolve the issue.