Service including but not limited to: oxygen, mixed gas, and humidity; monitoring; ventilators (Invasive and Non-invasive); bronchial hygiene; lung expansion; Spirometry testing; EKG machines; Blood Gas Analysis. Responds, performs, and participates in cardiopulmonary resuscitation by maintaining the airway, providing oxygen and ventilation via mask, endotracheal tube, or other devices, and performing closed chest cardiac massage.