As the name implies, oxygen cylinders are metal containers composed of either iron or aluminium that can store oxygen and be used to provide it to the patient as needed. They deliver oxygen that is 99.9% pure. available in weights ranging from 5 kg to 50 kg. They help tide over brief emergency situations. Cylinders under 10 kg can be transported with ease, but bigger cylinders can be challenging to move. Cylinders' primary drawback is their necessity for frequent refilling.
