The Chest Expectoration Machine replaces the traditional manual chest percussion, tremor, and directional compression for postural drainage. The Expectoration Machine can remove long-term fluid accumulation in the lungs or deep layers and remove sputum through multi-directional vibration, squeezing, and directional drainage. Fluid is expelled from the body. In addition, the biggest feature of the Whole Chest Oscillating Expectoration Machine is that it can improve pulmonary blood circulation, prevent venous stasis, relax respiratory muscles, improve body muscle tone, and strengthen respiratory muscles, thereby producing a cough reflex, which is harmful to the body. Good for recovery. Vibrating expectoration machine: It integrates directional pushing, vibration and percussion functions. The Oscillating Expectoration Machine can liquefy, loosen, and shed metabolites in the patient's respiratory mucosa, and then cough them out, thereby effectively promoting the discharge of sputum. This…