Differences such as different functions and different application scenarios.

1. Different functions: Soundproof cotton is mainly used to isolate the transmission of noise and sound, reducing noise and improving the quietness of the environment by blocking the propagation path of sound. Silencer cotton is mainly used to eliminate sound and noise and improve the sound quality of the environment by absorbing sound and noise.

2. Different application scenarios: Sound insulation cotton is usually used inside building structures, such as walls, ceilings, etc., to isolate internal and external spaces and reduce sound transmission. It can be used in homes, offices, hotels and other places to reduce the impact of external noise on the room. Silencer cotton is used inside smaller spaces, such as recording studios, studios, concert halls, etc., to reduce sound reflection and echo and improve the clarity and quality of sound.