Medical Oxygen requires a doctor’s prescription because it is considered a drug as well as a hazardous material. The prescription must also have a DIAGNOSIS and LITER FLOW RATE to be considered a Valid Prescription. This Flow Rate is considered the dosage of the drug that is prescribed by the doctor.
Portable cylinders, which come in several sizes, weigh between 11 and 14 pounds, and the supply usually lasts between 3-5 hours. Cylinders are usually transported with a cart.