Portable oxygen concentrators. Generally, the Federal Aviation Administration (FAA) prohibits the use of personal oxygen units during flights because they contain compressed gas or liquid oxygen that is defined as hazardous material. However, the FAA has issued guidelines permitting the onboard use of certain portable oxygen concentrators (POCs). POCs approved by the FAA may be carried and used on board United flights worldwide at no charge, in accordance with FAA regulations.
Ronald Reagan (1911-2004), a former actor and California governor, served as the 40th U.S. president from 1981 to 1989. Raised in small-town Illinois, he became a Hollywood actor in his 20s and later served as the Republican governor of California from 1967 to 1975.
  When Ronald Reagan left office, he was the oldest person to ever be the President of the United States, at 78 years old. He was also the oldest person elected president, â¦ at 69 years old.If John McCain wins the nomination and then the general election in November, he will beat that record at 72 years old.onald Wilson Reagan was 69 years old when erected US  President in 1980, and turned 70 less than a month after assuming  office. He served two full terms, leaving office sh â¦ ortly before his  78th birthday. He was the oldest person elected to the  Presidency in US history and the oldest to serve.