Human Compatibility Testing of a Pressure-Breathing Mask, MBU-12/P.
Abstract
Subject preference for the MBU-12/P mask over the MBU-5/P was revealed by results from more than 48 altitude-chamber tests with each of these oxygen pressure-breathing masks. According to subject evaluation, the assets of the MBU-12/P mask include: more comfort; better ability to Valsalva; more freedom of movement of the head; less redness and marking of the face; greater peripheral vision; and, at altitude, a tighter seal against loss of oxygen. The responses of both masks at low and high temperatures were similar. Subjective evaluation of communication revealed no apparent difference between the two types of mask. Moderate improvement was measured in tendency of the MBU-12/P mask to hold to the face and not leak during exposure to increased gravity fields of 3, 5, and 7 Gz. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- May 01, 1976
- Accession Number
- ADA027823
Entities
People
- Julian P. Cooke
Organizations
- United States Air Force School of Aerospace Medicine