The Ottumwa Fire Department is seeking donations to purchase a detox sauna, a method fire departments are using to prevent cancers caused by carcinogens that are unavoidable on the job. Derek Fye, first class firefighter with Ottumwa Fire Department, said he read about the therapy in a firefighter magazine. With studies suggesting that firefighters are more likely than the general public to develop cancer, Fye thought that any way to lower the risk would be a good thing. Sauna detoxification is popular in the private sector and has been in use in fire departments for several years.