Oxygen concentrator VS oxygen cylinder

With the improvement of health awareness, many families have begun to pay attention to and purchase oxygen concentrators or oxygen cylinders to meet various needs.

So what are the differences between these two methods? Which one is better for home oxygen therapy?

01 Pressure difference

Due to volume limitations, oxygen cylinders need to be compressed and stored at very high pressures. ‌According to filling regulations, the pressure of oxygen cylinders is usually 12-14Mpa, which means that the inside of the oxygen cylinder needs to withstand considerable pressure. ‌If such a large pressure is released directly, the human body cannot bear it. Therefore, there will be a pressure reducing valve on the oxygen cylinder to adjust the pressure of the output gas, but it is still slightly higher than that of the oxygen concentrator. Under normal circumstances, the pressure at the outlet of the oxygen concentrator is between 0.04-0.07MPa.

It should be noted that the oxygen pressure in the oxygen cylinder gradually decreases with use, and it needs to be checked and replaced regularly to ensure sufficient oxygen supply. Unstable pressure may affect the oxygen inhalation effect.

02 Difference in oxygen concentration

The oxygen concentration of oxygen concentrators and oxygen cylinders is different. The medical oxygen concentration of oxygen cylinders is higher, and some can even reach more than 99%. The oxygen concentration of conventional medical oxygen concentrators is about 93% (national standard 93%±3%).

Although there are differences in oxygen concentration, for ordinary users, only an oxygen concentration of more than 90% is needed. In special cases where high-flow oxygen supply is required, the oxygen concentration is still above 90%.

03 Difference in comfort

The oxygen cylinder is filled with liquid oxygen. We know that liquid needs to absorb heat to convert into gas, which will cause the gas output by the oxygen cylinder to be relatively cold. The nasal cavity is flushed by cold gas for a long time, which may cause damage to the nasal mucosa. The comfort of use is definitely not good.

04 Safety difference

As mentioned above, the pressure of the oxygen cylinder is 12-14Mpa (1Mpa is approximately equivalent to a weight of 10 tons on an area of ​​1 square meter).

The surface area of ​​an ordinary medium-sized oxygen cylinder is about 1.3 square meters, which means that the internal pressure needs to withstand 156 to 182 tons). If it is not stored properly, it may cause danger.

Home oxygen concentrators generally use the molecular sieve principle to make oxygen, using air as raw material and power as power. Compared with oxygen cylinders, the safety is greatly improved.

05 Economic Benefit Difference

At present, the average home 5-liter oxygen concentrator is about US$500, and the 10-liter machine is about US$1,500. The price of a bottle of oxygen is about US$50, and the freight is about US$20-30.

The cost of using oxygen cylinders in the short term is not very high, but it is not recommended to use oxygen cylinders for oxygen supply after a long time.

If it is only for short-term oxygen inhalation, then use oxygen cylinders; if long-term oxygen therapy is required, it is more cost-effective to use home oxygen concentrators.

06 Convenience Difference

Generally, the weight of an oxygen cylinder is 50-60kg, which is difficult for a healthy person to move at will, and the oxygen cylinder is a consumable, and oxygen needs to be refilled in the bottle every once in a while. If there is a problem with oxygen supply or transportation, it is extremely inconvenient for users.

The weight of a home oxygen concentrator is about 20kg, and most of them have universal wheels, which makes it very easy to move. You can use it freely at home or in the office.

On the other hand, the oxygen concentrator does not consume the oxygen in the container like an oxygen cylinder, and the user can breathe freely as long as there is electricity.

At present, there are very few temporary power outages, and power outages will be notified in advance. If the user cannot leave the oxygen therapy, you can use the backup power supply at home or call for an oxygen cylinder temporarily.

In summary

oxygen concentrators and oxygen cylinders have their own advantages and characteristics. For users who need long-term home oxygen therapy, oxygen concentrators are a good choice.

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