The FAA Requires Use Of Supplemental Oxygen - When flying above 12,500 ft. for more than 30 minutes, or flying above 14,000 ft., pilots and crewmembers are required to use oxygen. Above 15,000 ft., all occupants, including passengers, must be provided with supplemental oxygen.
Dangers of Hypoxia (oxygen deficiency) - The chances of HYPOXIA increase with altitude. Decreased night vision beginning as low as 5,000 ft. above sea level. At 10,000 ft. forced concentration, fatigue, headache. At 12,000 ft. & above, deterioration of alertness and mental efficiency.
At 14,000 ft., forgetfulness, incompetence, indifference, distinct impairment of mathematical and reasoning capabilities make flying hazardous. At 17,000 ft., serious handicap and collapse may occur. Smokers will experience these syptoms 3,000 - 4,000 ft. lower. Pilots impaired by hypoxia are usually unable to judge level of impairment, similar to the effects of alcohol.
And now the facts on my new system...
This Forty Cubic Foot complete system is a self contained unit with no installation required. It’s easy to use and has no FAA weight and balance change necessary. The oxygen system includes a pressurized cylinder with oxymizer cannulas, lines, a flow indicator, quick disconnects, and a spare mask. The SK 11-40 complete oxygen system is easy to refill with aviation-grade breathing oxygen (MIL-027210, Type1) It's lightweight cylinder, about 30 lbs, is easy to fasten to the back of a cockpit seat or in our case sitting between the two back seats makes it truly portable. The adjustable flow regulator allows you to set by altitude or special flow. As you change altitude, adjust the flow control valve for more or less oxygen (the upper gauge shows altitude and flow setting, the lower gauge shows remaining cylinder pressure).
The SK 11-40 oxygen system’s flow does not have to be adjusted if using more than one outlet. You can easily check the charts provided with cannulas for proper flow setting. This oxygen system’s oxymizer cannula reduces oxygen usage over 50%, when compared to others on the market. It can be used up to 18,000 ft, and stores oxygen in a pendant reservoir. The pendant rests on your chest, not your lip. You’re free to drink a beverage & talk in total comfort.