Last week he had to have the oxygen on during the day now that he is older he usually only has to sleep with oxygen on at night. When he was 1 and a half years of age we were able to take the constant oxygen off during the day, so to have to be tethered again did not make him happy this week. He willingly let me do a shaker treatment so he could get the halter off his face for the rest of the day. This was the smile he gave me when I said we could take it off if he did a shaker treatment. That's about the happiest I had seen that face all week.
You know oxygen is something you just can not live without. It is amazing all that it does for your body. Here are a few links that enlighten the need for oxygen. The statement that is about oxygen in this first link is rather closer to the end of the video clip but there are so many good things to learn before you get there that please take the time to hear all of the comments that Dr. Oz makes here.