Pressure vessel for human occupancy

A Pressure vessel for human occupancy ia a container that is intended to be occupied by one or more persons at a pressure which differs from ambient by at least 2 pounds per square inch (0.14 bar). Since 1977, the American Society of Mechanical Engineers PVHO committee has published standards governing the construction of a number of structures which are defined as Pressure Vessels for Human Occupancy. The current standard is PVHO-1-2019.[1] Similar standards are published by a range of national and international standards organisations.

List of PVHO types
  • decompression chambers
  • Closed diving bells, also known as dry bells or personnel transfer capsules
  • High altitude chambers
  • hyperbaric chambers
  • hyperbaric stretchers
  • medical hyperbaric oxygenation facilities
  • recompression chambers
  • submarines
  • Manned submersibles
  • Atmospheric diving suits


Nuclear reactor containments, aerospace cabins, caissons or mild hyperbaric chambers are not considered to be PVHOs according to the standard.

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References
  1. "PVHO-1-2007" (PDF). Public.Resource.Org, Inc. Retrieved September 4, 2015.
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