We have high - quality professional products, as well as advanced product lines . All of the products comply with international quality standards and are greatly appreciated in a variety of different markets throughout the world.Along the increasing market demands, we continuously satisfy customers by updating products to improve prouduction systems, improve quality. Hoyo Scitech Co., Ltd. It is a high-tech company focusing on the field of life and health. Headquartered in Anhui, Hefei. The company produces home oxygen concentrators, medical oxygen concentrators, diffuse oxygen generators, Sleep apnoea breathing therap.