72481 ⎘
Arrangements or adaptations of air-treatment apparatus for aircraft crew or passengers, or freight space, or structural parts of the aircraft the air being conditioned; Environmental Control Systems with special provisions against smoke from cigarettes
Systems and methods providing airflow within a vehicle
#2Aircraft environmental control system that optimizes the proportion of outside air from engines, APU's, ground air sources and the recirculated cabin air to maintain occupant comfort and maximize fuel economy