The difference between 3 liters and 5 liters of small oxygen generators

What is a small oxygen concentrator

The oxygen concentrator can separate the air and strip out the oxygen for us to breathe. However, there are both commercial and household oxygen generators. Commercial oxygen generators are generally larger and suitable for multiple people to use together, while household oxygen generators are also called small oxygen generators, which can be used by 2-5 people at home. Use, the AC voltage is very small, only 200V, and its rated current is also very small, so don’t worry about wasting electricity, 06A is enough for us, very environmentally friendly, this is a small oxygen generator, very practical .

Small Oxygen ConcentratorFeatures

Small Oxygen Concentrator is easy to use, portable, and suitable for use by health care practitioners. The car and home dual-use type can not only be suitable for small size, but also can be used in the car by using the car power supply. Oxygen is a colorless and odorless gas, which is an important substance for the survival of the human body, and also an important substance for the survival of other animals and plants. Without oxygen nature would be lifeless and lifeless, as important as water. Oxygen is used in a wide variety of industries, including healthcare and beauty care.

Working principle of small oxygen generator

Using molecular sieve physical adsorption and desorption technology. The oxygen generator is filled with molecular sieves, which can adsorb nitrogen in the air when pressurized, and the remaining unabsorbed oxygen is collected and purified to become high-purity oxygen. The molecular sieve discharges the adsorbed nitrogen back into the ambient air during decompression, and can absorb nitrogen and produce oxygen during the next pressurization. The whole process is a periodic dynamic cycle process, and the molecular sieve is not consumed.

How to use the small oxygen concentrator

1. Install the main engine as a floor type or hang it on the wall and hang it outdoors, and install it to collect gas. filter.

2. Nail the oxygen supply gusset plate on the wall or support as needed, and then hang the oxygen supply.

3. Use an oxygen delivery tube to connect the oxygen outlet of the oxygen supply, and connect the 12V power cord of the oxygen supply to the 12V power cord of the host. If multiple oxygen supplies are connected in series, just add a tee The connector can be fixed, and the pipeline is fixed with a wire buckle.

4. Plug the 220V power cord of the main unit into the wall socket, and the red light of the oxygen supply device is on.

5. Please add purified water to the designated position in the humidification cup. Then install it on the oxygen outlet of the oxygen supply.

6. Please put the oxygen delivery tube on the oxygen outlet of the humidification cup.

7. Press the start button of the oxygen supply unit, the green indicator light is on, and the oxygen generator starts to enter the working state.

8. According to the doctor’s advice, adjust the flow to the desired position.

9. Hang up the nasal cannula or wear a mask to inhale oxygen according to the package instructions of the oxygen inhalation mask or nasal straw.

Small Oxygen Concentrator Notes

1. Patients who purchase an oxygen concentrator should read the instructions carefully before using it.

2. Avoid open flames when using the oxygen generator to avoid fire.

3. The oxygen generator should be placed stably, otherwise it will increase the noise of the oxygen generator.

4. The water level in the humidification bottle should not be too high (the water level should be half of the bottle body), otherwise the water in the bottle will easily escape or enter the oxygen suction pipe.

5. When the oxygen generator is not used for a long time, please cut off the power supply, pour out the water in the humidification bottle, wipe the surface of the oxygen generator clean, cover it with a plastic cover, and place it in a dry place without sunlight. save at.

6. When the oxygen generator is turned on, do not place the flowmeter float on the zero position.

How to choose a small oxygen concentrator

1. In the process of choosing a home oxygen concentrator, it should be safe, reliable, stable in performance, moderate in price and low in cost , Beautiful appearance, simple operation, easy to carry, quick oxygen release and so on.

2. Due to the difference in the technical level and configuration level of the manufacturers, the performance of different oxygen generators is very different, and the price is also very different. It is recommended that customers buy products with core technology manufacturers using high-end configuration. In this way In the after-sales service and later maintenance, there is something to be assured.

3. Select an oxygen generator with a large enough compressor displacement, otherwise it will be easy to wear during long-term operation, resulting in insufficient gas volume and attenuation of oxygen concentration. The leather wrist of the compressor is very important, and it is easy to use imported parts. Some users prefer a small-sized oxygen machine. In fact, this model cannot accommodate larger compressors, and its performance is naturally limited. Only a model with a larger volume close to a square can accommodate a large compressor.

4. When purchasing, we should choose a machine with low noise during work, no more than 45 decibels, only within this range is good.

5. The oxygen content of 90% is the standard for medical oxygen standard. Although the home oxygen concentrator may not reach this value, it should not be too low, generally around 85%.

Home Oxygen Concentrator3L and5L The difference between oxygen generators

1. The range of oxygen flow is different

3 liters oxygen generator, the oxygen output flow rate is 1~3 When the oxygen concentration is 1 liter per minute, the “Oxygen Concentration” reaches 90%~96%, that is, the oxygen output flow per minute of the 3-liter oxygen generator. When the user selects 1 liter per minute, 2 liters per minute, and 3 liters per minute, It can provide oxygen with an oxygen concentration of 90% to 96%. It should be noted that although some 3-liter oxygen generators can be adjusted to 4 liters or 5 liters of gas volume, in this case, the oxygen concentration of the machine is no longer 90%~96%. With the increase of , the oxygen concentration will decrease to about 70% at 5 liters.

For 5-liter oxygen concentrator, when the oxygen output flow rate is 1~5 liters, the “exit oxygen concentration” reaches 90%~96%, that is, the 5-liter oxygen concentrator not only includes: the output per minute When the oxygen flow rate is selected as 1 liter, 2 liter, and 3 liter, its oxygen concentration is 90%~96%; at the same time, when 4 liters per minute and 5 liters per minute are selected, it can provide oxygen concentration of 90% ~96% of oxygen therapy uses oxygen.

2, FiO2Different range of values

FiO2 Fraction of inspiration O2 is the English abbreviation of Fraction of inspiration O2, which is interpreted in Chinese as the fraction of oxygen concentration in the inhaled air, referred to as the inhaled oxygen concentration. Commonly used to express the percentage of oxygen involved in gas exchange in the alveoli.

The 3-liter oxygen concentrator and the 5-liter oxygen concentrator provide different ranges of medical oxygen flow, so when you use the most common nasal oxygen tube (also known as: nasal cannula, nasal straw) When the oxygen inhalation device is used for oxygen inhalation, the inhaled oxygen concentration FiO2 is different due to the oxygen inhalation flow rate.

“Standard Nasal Oxygen Tube” is a low-flow oxygen inhalation device. It is often used for oxygen therapy of no more than 6 liters per minute. It belongs to open oxygen inhalation. The actual oxygen concentration reaching the lungs is: oxygen production. The oxygen concentration of the machine after the oxygen is mixed with the air.

3, Applicable to different groups of people

3 liters oxygen concentrator, mostly used for: light Moderate respiratory diseases, cardiovascular and cerebrovascular diseases, and the third-highest population.

The 5-liter oxygen generator is mostly used for: patients with severe diseases, people who need to use ventilators, those who need long-term oxygen inhalation every day: chronic obstructive pulmonary disease, pulmonary fibrosis, lung resection, lung cancer, pneumoconiosis, silicosis Wait for the crowd.

4, Different workloads

Typically, a 5 liter The amount of molecular sieve filled in the oxygen generator is more than that of the 3-liter oxygen generator. At the same time, its power components are also the main cost. The air compressor in the oxygen generator can withstand more workload. It is more suitable for people who need long-term oxygen therapy every day. For example, for people with COPD, they should use a 5-liter oxygen concentrator rather than a 3-liter oxygen concentrator.

In terms of oxygen inhalation flow, people with COPD should adopt low flow: 1.5~2.5 liters of oxygen per minute for oxygen therapy, which may lead some people to think that as long as 3 liters of oxygen generator is enough However, in terms of oxygen inhalation time, for people such as COPD, the daily oxygen therapy time is relatively long, and they are often advised that the daily oxygen therapy time should not be less than 15 hours , if allowed, it is best to carry out oxygen inhalation for 24 hours.

The 3-liter oxygen concentrator only runs 1.5~2.5 liters per minute. The air compressor on the 3-liter machine has already carried a certain workload, and then it will work for 15 hours or 24 hours for a long time. , which greatly reduces the life of the compressor and easily leads to machine failures.

5-liter oxygen generator, many companies have designed the 5-liter oxygen generator as a 24-hour operation mechanism, the displacement of the compressor is larger, and the performance is stronger. When choosing 1.5~2.5 liters Because the 5-liter compressor has a larger displacement and has more margin, even if the displacement of the 5-liter compressor is attenuated during long-term operation, it can still meet the minimum requirements of the system, and the overall life is longer. . This oxygen inhalation mode for people with COPD appears to be more secure and appropriate. This is an important reason why many professional physicians recommend them to use a 5-liter oxygen concentrator.

Types of Home Oxygen Concentrators》》