In 1955, the Pizza Hut restaurant was first commenced. Its first logo featured its only mascot Pete holding the words Pizza and Hut. 1967â1999. In 1967, the chain began using a new and simplified logo featuring the now-famous red roof design (which is still used albeit in a modified form today).
Oxygen therapy can be delivered using a low flow or high flow system. All high flow systems require humidification. The type of humidification device selected will depend on the oxygen delivery system in use, and the patient's requirements. The humidifier should always be placed at a level below the patient's head.
Weighing in at 7 pounds, the G2 is the lightest portable oxygen concentrator to offer pulse flow settings up to 6. Oxygen Output: The Inogen One G2 is a pulse flow oxygen concentrator. It has the highest oxygen output in its class, offering pulse flow settings 1-6.