1. Ventilation for odor removal. Within the first half year after purchasing a new car or for a period of time right after decoration, it is advisable to develop the habit of driving with the Windows moderately open to maintain the circulation of fresh air inside the vehicle.

2. Charcoal deodorization. Wrap the black charcoal you bought in clean and breathable gauze, and then put it in the trunk of your car. The charcoal can absorb the unpleasant odors inside the car.

3. Fruit deodorization. You can place lemons or pineapples. Cut them open so that their fruity fragrance can be well released, offsetting the unpleasant odors in the car.

4. Remove odors with rice vinegar. When you are not using the car, prepare a small bucket of water and add some rice vinegar. Put it in the car. The water can absorb formaldehyde, and the vinegar can help remove it.

5. The purifier removes odors. Buying a negative ion air purifier costs around 300 yuan. It can remove the unpleasant smell in the car and allow passengers to breathe fresh air.