Is Adding Soundproofing Cotton to a Car Effective?

[DeQuinn]

Adding soundproofing cotton to a car is effective, as it can indeed enhance the vehicle's sound insulation performance. Soundproofing cotton is typically installed in areas such as the engine hood, behind and beneath the rear seats, on the doors, and on the floor. It improves the car's sound insulation and reduces the amount of noise that enters the cabin. The soundproofing cotton on the engine hood serves multiple purposes: it not only blocks noise but also provides insulation during winter, helping the engine warm up quickly after startup. Additionally, it absorbs some of the oil vapors produced during engine operation, protecting the paint on the hood.