Profile: DrMedicalEquipment specializes in various medical-related products. Our products include portable oxygen machines, home oxygen concentrators, pulse oximeters, hyperbaric chambers and stair lifts. Our product Inogen One is a light weight portable oxygen concentrator. It comes with a 3 years manufacturer warranty. The Ever Go by Respironics is a revolutionary pulse dosed oxygen machine. This new concentrator is great for anyone with an active lifestyle. The machine weighs only 8.5 lbs with one battery and weighs 10 lbs with 2 batteries, making it extremely light & portable. The Respironics EverGo is a pulse dosed machine that operates off a touch screen and runs settings of 1-6 liters per minute in 1/2 increments. We specialize in oxygen machines and concentrators including home & portable oxygen machines.