SHENZHEN HEALTH MEDICAL DEVELOPMENT CO.LTD. is one of leading companies specialized in developing,manufacturing and marketing oxygen concentrator sleep apnea therapy,HFNC,and nebulizer. Experienced in great progress and efforts Owgels market presence spreads across whole China and more than 50 countries and regions worldwide. Being a national high-tech enterprise and an IS09001 , IS013485 qualified company we implemented high standard to every aspect from product development, manufacturing quality control and customer relations.