Nidek Medical Products, Inc. is a USA based manufacturer of oxygen concentrators for the home health care market. All of our oxygen concentrators are manufactured in Birmingham Alabama. Nidek Medical Products, Inc has been manufacturing oxygen concentrators for 30+ years and has products on the ground in 100+ countries. Nidek Medical Products, Inc works closely with its distributors to guarantee a thorough understanding of our products so the end-user will have a positive home oxygen experience. Nidek Medical Products, Inc can be contacted directly from any patient and we will gladly have your local agent contact you to arrange service for your home.