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Noise Levels in Pressure Boxes

Abstract:

To the Editor: The recent report of the successful use of continuous positive airway pressure (CPAP)1 has prompted widespread investigation of the technic using a pressurized headbox, with some highly enthusiastic preliminary reports from other nurseries.2, 3 In working with a “Gregory box” built to the design described in the original paper, we have come upon a serious hazard that we consider important enough to be called to the attention of other investigators. The sound pressure in the box used by Gregory was reported as 95 db; in our chamber, the sound pressure ranged from 80 to 86 db at levels. © 1972, Massachusetts Medical Society. All rights reserved.

Año de publicación:

1972

Keywords:

    Fuente:

    scopusscopus

    Tipo de documento:

    Other

    Estado:

    Acceso restringido

    Áreas de conocimiento:

      Áreas temáticas:

      • Ingeniería y operaciones afines
      • Ingeniería sanitaria
      • Física aplicada

      Contribuidores:

      Gagliardi J.V.Gagliardi J.V.
      Campbell A.G.M.Campbell A.G.M.
      Caspe W.B.Caspe W.B.
      George A. GregoryGeorge A. Gregory
      Hoffman L.I.Hoffman L.I.