To buy materials for soundproofing, https://shumoizolyatsiya.com.ua/ru/product-category/shumoizoliatsiini-materialy/ you should visit stores specializing in the sale of soundproofing materials or construction materials. You can also search for such products in online stores, where a wide range of soundproofing materials of various types and manufacturers is often offered. When choosing materials, pay attention to their characteristics, effectiveness in sound absorption, and suitability for your needs.