Problem statement:   Most [ commercial ] aircraft carry oxygen(a composition of air)
                     supplies.

Opportunity      :   Most aircraft provide for a regulator of air ...blowing overhead
                     ...such a blower positioned overhead.


                     Given that the edible or basic necessary element is oxygen,

                     contrary to existing designs  ...that provide a seperate provision
                     for oxygen ....just carrying the oxygen ...let it flow using the
                     inlet or oulet overhead passenger ...ability to regulate it 
                     provide a ideal opportunity.


                                
 Note: The above problem statement having been encountered in various scenarios
      and detailed in various 'Proof of concepts' as mentioned in 
      
       http://uk.geocities.com/ravivenkatus/projects.pdf
       http://ravishankarkv.tripod.com/projects.pdf
        ....apply appropriate
      'use-case' modeling, rationalize and arrive at a workable and feasible 
       solution both commercially and techinically viable.


   
   