Accession Number:

AD0883556

Title:

Comparative Evaluation of Scott Aviation Inc. Model 3300 Closed Circuit Oxygen Breathing Apparatus with Single and Double Demand Valves.

Descriptive Note:

Final rept.,

Corporate Author:

NAVY EXPERIMENTAL DIVING UNIT PANAMA CITY FL

Personal Author(s):

• Harter, J. V.

Report Date:

1969-01-01

Pagination or Media Count:

35.0

Abstract:

The Scott Aviation closed circuit oxygen underwater breathing apparatus was evaluated to determine the relative merits of single demand valve actuation versus double demand valve actuation of make-up oxygen. No significant improvement is provided through the use of a single demand valve as designed. Excessive breathing bag inflaction develops. The double demand valve requires a means of adjustment to provide a satisfactory actuation level. Author

Descriptors:

• *BREATHING APPARATUS
• UNDERWATER
• VALVES
• CARBON DIOXIDE
• ABSORPTION
• RESPIRATION
• OXYGEN
• SCUBA DIVERS

Subject Categories:

• Life Support Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE