The core technology of liquid oxygen respirator is cryogenic technology,is a breakthrough of the liquid oxygen storage and supply technology, not only with large oxygen storage capacity, but also ensure its low storage pressure and work pressure.Gas oxygen tank pressure generally up to 150 kg/cm2.Therefore, cryostech liquid oxygen respirator is different from gas oxygen bomb, it doesn’t have the danger of explosion, use and storage safely. A liquid oxygen respirator can store 10 times oxygen of high pressure oxygen bomb, each ambulances equipped with a cryostech liquid oxygen respirator and can provide oxygen directly to the patient,it can also provide oxygen to the cryostech liquid oxygen portable respirator, especially suitable for long distance transportation of the patient. Cryostech liquid oxygen respirator can ensure the life safety when there is a hypoxia,disease and injury in disaster relief, emergency rescue, field construction, high-risk operations.