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.
An oxygen concentrator is a medical instrument that provides oxygen therapy to patients with respiratory illnesses. Oxygen concentrators administer oxygen that is purer than the oxygen in the ambient air. Oxygen concentrators have become significantly more popular than compressed oxygen tanks. Unlike oxygen tanks, oxygen concentrators do not run the risk of leaking and causing explosions or fires.