RF cavitation slimming machine HIFU beauty Equipment creates an effect like internal Explosion. The gas and vapour exist in these tiny space. In the compression cycle, supersonic wave impose a positive pressure on liquid molecule, whereas a negative pressure will be created through the expansion cycle. There is a cohesion effect inside the liquid or biological tissues. A negative pressure at relative low, can create tissue gaps easily. One stop solutions for spa beauty machines and salon equipments purchase at TheBeautyEquipment.com