What is the difference between an air-compressed nebulizer and an ultrasonic nebulizer?

Ultrasonic nebulizer: using the principle of ultrasound to atomize the medicine. \x0d\ Ultrasonic nebulizer nebulizer has no selective homogeneity of fog particles, so most of the drug particles produced can only be deposited in the upper respiratory tract, such as the mouth, throat, and due to the lungs, the amount of deposition is very small, and can not be effective in the treatment of lower respiratory tract diseases. At the same time, due to the ultrasonic nebulizer produced by the fog particles large, fast atomization, resulting in patients inhaling too much water vapor, so that the respiratory tract wetting, the original part of the respiratory tract to block the bronchial tubes of the dry and thick secretions to absorb the water and expand, increase the resistance of the respiratory tract, may produce a lack of oxygen phenomenon, and ultrasonic nebulizers will make the drug liquid knotted into a droplet hanging on the wall of the inner chamber, the lower respiratory tract diseases are not effective, the demand for medicines, the large demand. Resulting in the phenomenon of waste. \x0d\ compression nebulizer principle and characteristics \x0d\ air compression nebulizer: also called jet nebulization, is based on the Venturi (Venturi) jet principle, the use of compressed air through the tiny orifice to form a high-speed airflow, resulting in a negative pressure to drive the liquid or other fluids together with the jet to the obstruction, in the high-speed impact to the surrounding splash to make the liquid droplets into a mist of particles sprayed from the outlet pipe. \x0d\ Gas compression nebulizer has the following advantages: \x0d\ 1. High-efficiency oil-free piston compressor, no need for cooling water during nebulization, routine maintenance-free, easier and more convenient to operate; the original drug nebulization, no need to dilute, good clinical results; virtually no drug residue, high drug utilization; \x0d\ 2. more convenient to operate and use, the product is equipped with a 2-meter air tube, a large margin of activity, sitting, lying can be used, lightweight nebulizer components, and the product is easy to use, the product is equipped with a 2-meter air tube. Use, atomization components lightweight, wearing, hand-held convenient; 3. atomization using the original drug atomization, in the relative treatment time inhalation of the appropriate amount of atomization, is not easy to cause the mucous membrane of the inner wall of the trachea rise, resulting in trachea blockage, atomization of particles is ultra-fine, and is not easy to collision with the combination of the human body inhalation of comfortable, but also into the bronchial tubes, lungs, and other tracheal tube, the clinical effectiveness of the excellent, especially suitable for the treatment of lower respiratory tract diseases; \x0d\ 4. ...Purely mechanical products, very low failure rate, low maintenance costs, long service life, generally normal use 5 to 10 years.