Are you looking for a Portable Oxygen Concentrator to use? You have come to the right place! From Pulse Flow to Continuous Flow, we can help you pick out what you need! With just a few quick questions, we can determine which Portable Oxygen Concentrators might be the best suited for your needs. We take many factors into consideration such as amount of LPM needed, do you need to use it at night? How much weight can you comfortable carry? And how much battery life would you need? There are a number of new Portable Oxygen Concentrators available now so we are sure to be able to find one that is right for you! All new machines come with a full manufacturers warranty which is typically about 3 years. They also include an AC charger for your home, they include a DC charger for your car, and also include at least one battery. Some machines have the battery built internally, and some have "hot swap" batteries that you can change "on the fly" while you are walking around. Some Portable Oxygen Concentrators come with a travel cart so you can pull the machine behind you. Some Portable Oxygen Concentrators have the option to purchase a backpack so you can wear it on your back which would keep your hands and arms free, and able to use! Portable Oxygen Concentrators are compatible with a standard seven foot long cannula, and some are included in your order. As always, if you need extra supplies, extra chargers, or extra batteries for your Portable Oxygen Concentrators , we do have those available. New Portable Oxygen Concentrators are typically "Drop shipped" from the manufacturer and can take about 3-5 days for them to ship it direct to you. Call us at 1-540-297-3257 to discuss your next Portable Oxygen Concentrators purchase today!