Open up the skin pore,soften the grease,black head,make-upremnants and dirt tor deep cleaning inside. Vapor can help skin poresrelease toxin. The ozonizer which sending out Ozone will effectively kill the skin bacteria,keep the skin health,soften the necrotic cell of skin surface in order to clean easily Special on drip nozzle,safety thermostat is lack of water .Very simple filling and draining system. Shield protected jar .we built and reliable.