Soundproofing materials; Acoustical tiles; Stuffing composed of polyethylene, rubber, or plastic for pillows, cushions, comforters, duvets and upholstered furniture; Sound absorbing flooring underlayment; Sound dampening blankets; Acoustical insulation barrier panels; Acoustic insulation panels; Acoustic baffles for soundproofing purposes; Soundproofing materials, namely, nonmetal sub-floor membranes for residential and commercial soundproofing use