The 1982 Airstream Excella is a 28-foot, Class-A motorhome based primarily upon General Motors components. The iconic design of the van and varying trailers came from an all-aluminum travel van from the 1930s known as the Bowlus Road Chief. In the late 60’s and early 70’s the crewmen of the Apollo 11, 12, and 14 missions were all quarantined inside of a modified, airtight Airstream RV much like the example offered today. Astronauts were forced to quarantine inside the Airstream in the event that one of the crew brought back a “lunar pathogen,” until it was ultimately decided there was no actual risk of something like that occurring. Four of these Mobile Quarantine Facilities were constructed for NASA, and three of them now reside in American Space Museums.