Product features:Chest wrapped up fully by airbag,airway cleared automatically,no manpower needed.lmitation of manual percussions rhythmicity by airflow superposition technology for more effective and reliable therapy.Built-in smart program specially designed for low age and critical patients to guarantee safe and effective use.Intelligent operation,dynamic adjustment of ari chamber pressure&frequency through control system to make therapy parameters adaptive available.Main unit remote controlled by wireless hand controller,patients can turm off the machine anytime feeling sick during therapy.Multi function like user customized mode,storage&memory mode,nebulization and suction optional.AutoVest system already in use for years,its safety and efficacy been proved by over at least 200 clinical researches.Moreover,several peer-reviewed researches also demonstrated that the AutoVest sytem can clear secretions more securely and effectively than traditional chest therapy,maintain and improve pulmonary function.Improved pulmonary secretions clearance.Stabilized and improved pulmonary function.Improved exercise tolerance.Reduced incidence of pneumonia and related hospitalization.Higher patient satisfaction and therapy adherance.Reduced healthcare costs.