Noise Curtains

by dB Engineering

Sound Absorption Baffles & Wall Panels

Sound Absorption Baffles

dB Engineering offers a number of sound absorbing baffles and wall panels designed for a variety of applications.

Sound Absorption BafflesdB Engineering's Quilted Fiberglass line of Overhead Baffles & Wall Mounted Sound Absorption Panels feature a durable vinyl-coated-fiberglass-cloth facing quilted to a one-inch or two-inch thick fiberglass.   These Class A Flammability Rated baffles, offering high NRC ratings, are available in a number of colors and stitch patterns and can be custom fabricated to any size required.

dB Engineering's QFA Baffles are also available with either a decorative fabric facing or a nylon ripstop facing.  These attractive sound absorbers offer a wide range of colorful options which can be custom tailored for any commercial or architectural application.

Physical Properties


Acoustical Data

Sound Absorption Coefficients-Sabins Per Baffle:

One-Third Octave Band Center Frequency (Hz)

Style 125 250 500 1000 2000 4000 NRC
QFA-4 .59 2.43 7.17 8.66 8.82 6.71 6.75
QFA-10 .91 6.07 8.25 8.88 6.65 5.58 7.45
Test method: ASTM C423-81

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Sound Absorption Baffles

Sound Absorption Baffles


dB Engineering's Sanitary Overhead Baffles & Wall Mounted Sound Absorption panels are an effective, economic method of reducing reverberant noise in areas where sanitary conditions and USDA or FDA approved products are mandatory.   dB Engineering uses the latest in film technology to create economic products that are durable, chemically resistant, dimensionally stable and virtually rip-proof..

These Sanitary Ceilings Baffles and Wall Panels are tough enough to be washed down and maintain high NRC sound absorption values.  The also are durable enough to be used in difficult environments, such as swimming pools.

Physical Properties

Acoustical Data

Sound Absorption Coefficients-Sabins Per Baffle:

One-Third Octave Band Center Frequency (Hz)

Baffle 125 250 500 1000 2000 4000 NRC
Type A 1.15 5.26 8.0 10.9 9.34 5.5 8.4
Type B 1.00 8.09 14.65 15.72 12.68 4.93 12.8
Test method: ASTM C423-90a and C423-81

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Sound Absorption Baffles

Sound Absorption Baffles

Sound Absorption Baffles and wall panels

In addition to reducing reverberant noise, the durable, chemical resistant and water-tight construction of Sanitary Baffles makes them suitable in difficult environments such as in this swimming pool.


dB Engineering's Polywrapped Baffles are a heat-sealed polyethylene bag encompassing a sound absorptive fiberglass fill.   Standard size is 2' x 4' x 1 1/2" thick.  Grommets are installed for suspending from wire or cable ties.  White or black facings are standard.  These efficient, economic baffles offer a high NRC rating at an extremely low cost.

Physical Properties

Acoustical Data

  • Polywrapped Baffle
    2' x 4' x 1 1/2" thick
  • Sound Absorption Coefficients-Sabins Per Baffle:

    One-Third Octave Band Center Frequency (Hz)

    Style 125 250 500 1000 2000 4000 NRC
    Poly 2.1 6.5 10.7 14.1 12.7 8.1 11.0
    Test method: ASTM C423-90a and C423-81

    More than 600 Polywrapped Ceiling Baffles reduced overall noise levels by 8 dB(A) in this wood working facility.

    Table showing how the human ear perceives noise reduction.

    Decibel Reduction Reduction Experienced by Ear
    2 15%
    4 23%
    6 38%
    8 48%
    10 56%
    12 63%
    14 68%
    16 75%
    18 77%
    20 81%

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