Merlin oxygen concentrator produced by Hefei Merlin Purification Equipment Co., Ltd., look at its appearance is very unique, there is a timer and atomization function, there is also a rocking control, is a small and practical home oxygen concentrator, oxygen concentration of more than 90%. It is a small and practical home oxygen concentrator with an oxygen concentration of over 90%. It is sold in medical equipment stores near many big hospitals in Beijing! After-sales service is also very good, there is an office in Beijing, its office address in Shijingshan District, Wanda Plaza behind the Purple Royal International Building 3!