What are the hazards of installing car sound insulation cotton?

[MacHarley]

Installing car sound insulation cotton generally poses no hazards. Noise reduction: Installing sound insulation cotton can reduce the noise generated by the engine. After installation, the high temperature during engine operation also has less impact on the hood, protecting the paint surface and delaying its aging. Distribution of sound insulation cotton: In almost all car models, the four doors cover a very large area, second only to the roof and chassis. During driving, they directly contact with air. In addition to designers creating certain rounded shapes for door panels to reduce wind resistance and noise, car manufacturers also understand that simply increasing the large-area coverage of sound insulation cotton on the inner side of door panels can effectively absorb this wind noise.