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Withdrawn HPDs

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  1. Expired: Echo Eliminator/ASI/2024-12-31

    Open the PDF · HPD 39569

    HPD has expired. Expiration Date: 2026-05-30

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    Echo Eliminator, made from bonded acoustical cotton (B.A.C.), is the most cost-effective acoustical absorbing material on the market. It is a high-performance acoustical panel manufactured from recycled cotton, and is ideal for any noise…

  2. Expired: Microperf Ceiling and Wall Panels FGC/ASI/2023-10-12

    Open the PDF · HPD 35963

    HPD has expired. Expiration Date: 2026-10-02

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    Microperf ceiling and wall panels use cutting-edge acoustical technology, enabling sound mitigation without the look or feel of typical absorber panels. Engineered to appear like a standard millwork panel, they have excellent sound…

  3. Expired: Sound Silencer White/ASI/2023-06-15

    Open the PDF · HPD 35279

    HPD has expired. Expiration Date: 2026-06-15

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    Sound Silencer cleanable, tackable acoustical sound panels are unique – made from Rigid Porous ARPRO Acoustical (P.E.P.P.), these panels are Class A fire rated with STC and NRC values. Sound Silenc­er acoustical panels are great for…

  4. Expired: Sound Silencer Charcoal/ASI/2023-06-15

    Open the PDF · HPD 35278

    HPD has expired. Expiration Date: 2026-06-14

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    Sound Silencer cleanable, tackable acoustical sound panels are unique – made from Rigid Porous ARPRO Acoustical (P.E.P.P.), these panels are Class A fire rated with STC and NRC values. Sound Silenc­er acoustical panels are great for…