Evaluation of a Power-Assisted Breathing Device. 1. Airflow Characteristics. 2. Subjective Preference for Airflows over the Face
Abstract
The power-assisted breathing device was conceived to reduce gas mask resistance. This device consisted of a battery-operated blower attached to the inspiratory ports of the M17A1 mask, which was designed for continuous operation during wear. It supplied a flow of air through filters at 56 liters/min; this flow varies during wear with the phase of breathing. Subjective preferences for airflows over the face were tested from 75 to 250 liters/min for design information. Subjective opinions are discussed.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1972
- Accession Number
- AD0740643
Entities
People
- C. R. Bulette
- E. G. Cummings
- W. V. Blevins