title: Hypersensitivity pneumonitis due to contamination of home humidifier.
mesh_terms: D000192:Actinomycetales; D000368:Aged; D000397:Air Pollution; D000941:Antigens; D000942:Antigens, Bacterial; D001706:Biopsy; D004781:Environmental Exposure; D006801:Humans; D005779:Immunodiffusion; D008168:Lung / Q000276:immunology; D008297:Male; D011014:Pneumonia / Q000276:immunology*; D012129:Respiratory Function Tests; D012130:Respiratory Hypersensitivity / Q000209:etiology / Q000276:immunology*
chemical_list: D000941:Antigens; D000942:Antigens, Bacterial