Thanks everyone!
I've contacted Richard from Rives Audio who shares the same opinion with you. You need to take safety measures when installing it and can be replaced by rockwool of the same density. He stated though that all acoustical treatment companies (RPG,ASC etc) use fiberglass in their products.
I've contacted Richard from Rives Audio who shares the same opinion with you. You need to take safety measures when installing it and can be replaced by rockwool of the same density. He stated though that all acoustical treatment companies (RPG,ASC etc) use fiberglass in their products.