How to Deal with Rotten Smell in the Car?

[TaylorFitz]

While driving, try to use the external air circulation system and frequently open the windows. If your car has a sunroof, you can also open it to enhance ventilation. Volatile gases such as formaldehyde and benzene are released more quickly when the temperature exceeds 30°C. In summer, it is best to open the windows directly to dissipate odors. However, excessive exposure to sunlight can still have some negative effects on the vehicle. Many things can help absorb odors, such as essential oil diffusers, fruit peels, lemon slices, onions, activated charcoal, etc., all of which are good options.

[MadisonLee]

I previously encountered a rotten smell in my car, which felt like food residue had fallen into hidden corners and fermented, producing a particularly disgusting odor. My solution was to immediately conduct a thorough inspection of the interior. Carpets and gaps between seats are the most common sources, especially crumbs left behind after kids eat in the car. First, I vacuumed up the debris, then sprayed a mixture of baking soda and white vinegar, letting it sit for half an hour before wiping it clean—this helps disinfect and eliminate odors. Next, I rolled down the windows to ventilate for several hours to allow air circulation. For stubborn smells, I used professional deodorizers or bamboo charcoal bags placed inside for a few days to absorb the odor. Don’t forget to check the cabin air filter; if it’s moldy, replace it, or the smell will return when you turn on the AC. To prevent this, avoid leaving food waste in the car and maintain regular cleaning.

[McIvan]

I also had a rotten smell in my car before, probably from an apple core that fell behind the center console. Whenever I notice an odor, I spray some household fridge deodorizer into the door crevices and carpets, which works quite well. The key is to identify the source, otherwise repeated cleaning won't help. Give everything a thorough wipe-down with a damp cloth, focusing on corners and AC vents. Then take the car for a 30-minute drive with the recirculation off to freshen up the air. For long-term prevention, I keep a bag of bamboo charcoal in the trunk and clean the seats monthly—once it becomes routine, these issues don't recur. Health-wise, rotting smells can breed bacteria, so address them promptly to avoid respiratory problems.

[VonGrant]

The rotten smell in the car is unbearable. My friend suggested first using your nose to locate the source, which is most likely something rotten in the carpet or trunk. It's not difficult to deal with—just grab a bottle of deodorizing spray and evenly spray it inside the car, then turn on the heater for five minutes to let the smell dissipate. Keep some activated charcoal handy and place it in the corners to absorb odors. Prevention is key—don’t leave fruits or leftovers in the car, and vacuum once a week to maintain cleanliness. If the smell is severe, take it to a professional shop for ozone treatment to thoroughly sterilize the car. This issue is common in humid areas, so be mindful of the air conditioning to avoid excessive humidity.