&gt;&gt; In the days before antibiotics, the only treatment for tuberculosis was sunlight, clean air, and good food. What better place than an airship?<p>I&#x27;m not sure that people with lung infections would appreciate the reduced 02 associated with high altitude.  Perhaps the substantial advantage would have been that, given these things floated on bags of hydrogen, this would have been the only non-smoking medical ward circa 1930.