Tim Allen. This is the latest accepted revision, reviewed on 7 April 2017. For those of the same or a similar name, see Timothy Allen (disambiguation). Timothy Allen Dick (born June 13, 1953), known professionally as Tim Allen, is an American actor, comedian and author.
Not necessarily. Some of the symptoms of low oxygen can be shortness of breath, fast heart rate, changes in the color of the lips and fingernails, but some people will have a low oxygen level without experiencing any of these symptoms. Others may experience these symptoms without having a low oxygen level.
How many hours a day will I need oxygen? You should ideally use supplemental oxygen for 24 hours a day, unless your health care provider tells you you only need to use oxygen for exercise or sleep. Even if you feel âfineâ off of your oxygen, your bodyâs oxygen level may be low and can cause brain and heart problems.