A powerful preventive against pneumonia, influenza and other respiratory diseases may be promised by a brilliant series of experiments conducted during the last three years at the University of Chicago's Billings Hospital. Dr. Oswald Hope Robertson last week was making final tests with a new germicidal vapor—propylene glycol—to sterilize air.
Read more:
http://www.time.com/time/magazine/article/0,9171,932876,00.html#ixzz1pBJARdcq