Deutsche medizinische Wochenschrift
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Recently an increasing number of patients presented with febrile and respiratory symptoms associated with exposure to a new type of domestic ultrasonic humidifier. ⋯ These cases demonstrate the potential of ultrasonic humidifying devices to cause illness in the home. In view of their increasing popularity, humidifier lung and humidifier fever should be considered in the differential diagnosis of patients with unexplained pulmonary or flu-like illness with fever.