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Museum catalogue: Antarctic Collection


Face mask

Accession no.: Y: 59/8/5/9
Object name: Face mask
Title: Face mask
Description: A rubber face mask marked 'Geoff' (John Geoffrey Drewe Pratt). From the Commonwealth Trans-Antarctic Expedition 1955-58 and part of a sledging box (Y: 59/8/5/1) containing integrating motor pneumotachograph (IMP) equipment, used for determining energy expenditure by analysing expired air to calculate oxygen consumption.
Classified name:
SPRI theme health
Current place name Antarctic regions
UDC 612
Geographic UDC (*7)
Getty AAT
Number of items: 1
Full description:

A modified RAF H-type green rubber face mask, with chamois leather-lined cheeks. It has five spring-loaded inlet valves (two with metal and plastic fittings, two with black plastic fittings and one with no fittings on the outside, and all with black plastic plugs on the inside), so placed that the inspired air blows over the nose and mouth. There is a hole at the bottom of the mask to take a tube to connect the face mask to the flowmeter, moulded 'DETACH TUBE HERE'. The face masks were available in three sizes – the rubber on this one is moulded 'MEDIUM'. Handwritten in pen on the front of the mask is the name 'GEOFF' (J.G.D. Pratt). Grey textile webbing straps pass through rubber loops on the front of the facemask and are secured with safety pins; these are attached to fittings for the head strap. The beige textile webbing head strap would be attached to one side of the face mask with a metal hook and to the other with two metal poppers on a piece of leather.

  • Width: 105mm, height: 130mm, depth: 90mm
Associated person(s):
  • Used by: Pratt, John Geoffrey Drewe (1955 - 1958)
Associated expedition(s):
  • Used on: Commonwealth Trans-Antarctic Expedition 1955-58 (1955 - 1958)