Portable oxygen concentrator (POC) is a compact medical device that provides supplemental oxygen with increased mobility. It does so by absorbing ambient air, excluding nitrogen and providing oxygenated air via a nasal cannula. Portable models are helpful for those individuals who require prescribed oxygen therapy during their daily activities around the home or, as appropriate, when traveling. Some key factors to take into account when selecting a portable oxygen concentrator include oxygen requirements, delivery method, battery life, weight, portability, charging options, oxygen output, warranty, and after-sales support. Depending on the model some may have a pulse dose oxygen delivery system and some may have further modes due to their design. Traveling with an oxygen concentrator is allowed at home or when traveling based on the user's oxygen prescription and doctor or health care professional's recommendation. Proper cleaning, battery care, and regular maintenance are important for reliable operation. Portable oxygen concentrators can be rented or purchased, depending on what the user needs, how long they will be used and their budget. oxygen concentrator on rent | home health care services | sleep study test at home | bipap device