Must soundproof cotton be installed in the renovation of pubs?

Must be installed. Pubs are noisy and easy to disturb neighbors, so sound insulation should be done well, and sound insulation cotton has better sound insulation effect. Sound insulation cotton, also known as sound absorption cotton, is a porous sound absorption material. The main component material is cotton, which is not only light in weight, but also good in moisture resistance, corrosion resistance and moisture resistance, and has the effect of sound absorption and noise reduction.