Aviall Product Catalog And Source Book Page 1435 Environmental & Oxygen

OXYGEN MASKS AVOX SYSTEMS OXYGEN EQUIPMENT aviall ability aviall.com 1435 893 Series air crew oxygen breathing system. TSO-C78 APPROVED. TSO-C89 APPROVED MASK-MOUNTED REGULATOR. Harness of Delrin elastic band with 6-position adjustment. Regulator of polysulfone, silicone rubber, and corrosion-resistant metal components. Outstanding Features: Quick-donning oral-nasal mask assembly designed to provide breathing protection to 40,000 ft. Mask can be donned and supplying oxygen in under five seconds. Miniature mask-mounted diluter/demand regulator features manual selector for 100% oxygen or normal (air/oxygen) dilution. Regulator is well-marked and located on the assembly for easy monitoring. Duo-Seal oral-nasal facepiece is made of natural rubber for long duration comfort. Inner and outer seals are controlled by breathing. Harness is adjustable. Microphone assembly is mounted separately, eliminating the necessity of removing both the regulator and microphone assemblies should either require service. Microphone plug-in is compatible for use with most standard aircraft communication systems. Part No. Recommended Inlet Pressure Maximum Altitude Limitations Flow Rating Weight 893-( )* 55-70 PSIG Normal dilution setting: 20,000 ft. (6,096 m) 100 lpm (BTPS) A. 2.4 oz. (75 g) 100% oxygen setting: 40,000 ft. (12,192 m) B. 9.6 oz. (300 g) C. 14.2 oz. (440 g) A. Regulator assembly only B. Regulator, mask harness, and quick-don harness C. Total system, including all items listed in regulator, mask harness, and quick-don harness plus 4' oxygen hose and microphone pocket assembly Note: Masks have not been FAA/TSO qualified for wear over beards or heavy facial hair growth. Facial hair that crosses sealing surfaces can seriously degrade the performance of these masks. * See page 1508 for ordering information

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