Portable ultrasonic nebulizer low residual fluid household medical atomizer handheld asthma inhaler for adults / kids, colds / fever / cough / asthma / sore throat / pharyngitis / rhinitis / bronchitis / pneumoconiosis and other diseases in the trachea / bronchi / alveolar / chest, ≤0.5Ml residual liquid amount, ≥0.2Ml/min atomization rate, mainly used for the treatment of various upper and lower respiratory diseases, nebulizer used to atomize the liquid into tiny particle and drug enter the respiratory tract and lung by breathing inhalation.