WAVES Officer Demonstrates Oxygen Mask Use

WAVES in the low pressure chamber at the main dispensary at Naval Air Station, Jacksonville, Florida, during a special run, 14 October 1943. Simulated altitude for this test is between 18,000 and 30,000 feet. The WAVES officer appears to be demonstrating the use of an oxygen mask, prior to the beginning of the exercise.

Photo size: 3000 × 2435
Photo source: Naval History and Heritage Command
Usage: Public Domain