We take pride in helping oxygen patients in the state of Colorado.  DrMedicalEquipment.Com is a family owned Colorado corporation. We have been assisting patients on oxygen therapy for over a decade. Your one stop shop for home and portable oxygen concentrators. Our inventory included concentrators made by Invacare, Evo, Sequal, Devilbiss, Oxlife, Delphi, and many more. Our used oxygen concentrators are gone through by experienced technicians, making sure you end up with a home or portable oxygen concentrator that will be trouble free.