Pulse oximeter- these devices allow you to monitor your blood oxygen saturation, and helps you administer precisely the amount of supplemental oxygen you need. This allows you to maximize your oxygen supply.
Conserving nasal cannula- this device is placed in the nasal opening and is designed to maximize the amount of oxygen that is inhaled, thereby optimizing respiration and conserving oxygen in the tank and allowing it to last longer.

Oxygen conserving device- there are electronic conserving devices that provide up to 3-7 times as much duration from your oxygen cylinder by sensing your inhalation/exhalation cycle and releasing a measured bolus of oxygen at the start of each inhalation (where it will reach the deepest portion of your lungs), then shutting off the flow during the remainder of your inhalation/exhalation cycle (so it isn't wasted). Similar to the conserving nasal cannula, this technology enables you to achieve astonishingly long duration from small portable oxygen cylinders.

The duration of a given portable oxygen system (the amount of time the system can be used before having to refill it) depends on many related factors. Naturally, the size of the oxygen tank is a key factor because it determines how much oxygen you have to start with. How the oxygen is regulated and conserved by the system, in conjunction with how many breaths per minute, the altitude that the system is used and other factors will determine the ultimate duration of a given portable oxygen system.

How to find the best portable oxygen for you
Finding portable oxygen online is a great way to research and compare several types and models of portable oxygen tanks and accessories. Online shopping can also be a lot more convenient and efficient than driving across and around town in person, especially if there is no portable oxygen supplier close to you. Shopping online for portable oxygen can also be done 24 hours a day, and there are a few things to look for when shopping for the right portable oxygen web site for you.

Price- of course, price should be a consideration for any purchase you make, including portable oxygen supplies. All other things being equal, it usually makes sense to go with the service that offers the lowest price. However, don't make price your only criteria for choosing the best portable oxygen or portable oxygen supply site. Find out if the site will work with your insurance company, whether or not they can finance your purchase, and if they have a low price guarantee.