Two methods of administration
Small, single-occupant chamber filled with 100%<unk>  and pressurized to desired level
Large, multi-occupant chamber filled with room air and pressurized to desired level - occupants breathe supplemental<unk>  at ambient pressure via mask
Rationale for use
At normal pressures (even with supplemental<unk>  administration), very little<unk>  is dissolved in plasma
When<unk>  provided at 3 ATA, there is enough<unk>  dissolved in plasma to<unk> ate all body tissues without resorting to hemoglobin-bound<unk> 
At normal pressures (even with supplemental<unk>  administration), very little<unk>  is dissolved in plasma
When<unk>  provided at 3 ATA, there is enough<unk>  dissolved in plasma to<unk> ate all body tissues without resorting to hemoglobin-bound<unk>
Oxygen therapy
Inhaled corticosteroid
Pediatric jet ventilation
Theophylline
Bag valve mask ventilation
High frequency oscillation ventilation
Mechanical ventilation 
Surgical airways