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.
There are two types of oxygen concentrators: a Portable Oxygen Concentrator and a Stationary Oxygen Concentrator. A stationary or home oxygen concentrator usually features built-in wheels to move from room to room and is powered by AC current (plugging it into the wall).nly a few portable oxygen concentrators can provide continuous flow and these oxygen machines are slightly larger than the carry type travel concentrators that accompany the patient in a backpack or handbag. The continuous flow portable concentrators usually have built-on wheels or a cart for easy transport.