When you are deciding between an oxygen concentrator and an oxygen cylinder for your supplemental oxygen, it is helpful to know the pros and cons of each delivery method. 1. Oxygen cylinders are technically portable, but since they contain compressed oxygen, the cylinders must be built a certain way. As a result, oxygen tanks are: Bulky Heavy Difficult to carry and lift Require a wheeled carrier to move Cumbersome to travel with Oxygen concentrators are smaller than cylinders and do not need to retain oxygen, making them easier to take with you. Oxygen Concentrators are: Small Compact Lightweight enough to carry in a bag Can be wheeled or carried in a pack Easy to travel with 2. Oxygen cylinders are susceptible to leaks, causing a potential fire hazard as well as a risk to the user. Safety risks include: Could be punctured or leak Leaks create oxygen-rich air, which is highly flammable If the tank leaks, the user could run out of oxygen. Oxygen concentrators pull from the ...