Ultrasonic atomizer: using the principle of ultrasound, atomize the liquid medicine.
The nebulizer of ultrasonic nebulizer has no selectivity for fog particles, so most of the drug particles produced can only be deposited in the upper respiratory tract such as mouth and larynx, and because of the small amount of deposition in the lung, it can not effectively treat lower respiratory tract diseases. At the same time, because of heavy fog particles produced by the ultrasonic atomizer, atomization quickly, leaving patients inhaling too much water vapor, make the respiratory tract of wetting, respiratory tract absorb moisture had a partial blockage of bronchial stem thick secretion after inflation, increased airway resistance, may produce hypoxia phenomena, and ultrasonic atomizer can make solution form drip hanging inside the cavity wall, The effect on lower respiratory tract diseases is not good, the demand for drugs is large, resulting in waste phenomenon.