If you want to protect yourself from catching the flu in your own home, Trane might be able to help. First-of-its-kind research on removing flu virus conducted by researchers at the Harvard School of Public Health, in collaboration with scientists at Environmental Health and Engineering Inc., (EH&E) shows that Trane CleanEffects, a whole-house air filtration system from Trane Air Conditioning, removes more than 99 percent of the common flu virus, or influenza A virus from the filtered air.