1: How do I know that the 5l oxygen concentrator produces oxygen?
Answer: Generally, 5l oxygen concentrator manufacturers will have dedicated after-sales personnel. They can use an oxygen meter to detect the oxygen concentration produced by the oxygen concentrator. Of course, we can also use the combustion-supporting properties of oxygen to detect oxygen with lighted cigarettes. However, such detection is not accurate and has certain dangers, so it is not recommended. Of course, if you are particularly concerned about the problem of oxygen concentration, you can also choose a model with an oxygen concentration alarm. Of course, you have to pay an extra 1,000 yuan for this function, and the oxygen concentration probe needs to be replaced every two to four years, which costs 500 Around yuan.

2: Why is my 5l oxygen concentrator very noisy? And every 10 seconds or so, there are poof, poof sounds?
Answer: First of all, there is a compressor in the 5l oxygen concentrator, so there will be noise. The level of noise control is related to the level of the oxygen concentrator manufacturer and the volume structure of the oxygen concentrator. Generally, the larger oxygen concentrator has lower noise. , Because this oxygen concentrator has enough space for soundproofing components. Moreover, it is easier to design the internal structure of the oxygen generator to reduce the noise of the oxygen generator. For the oxygen concentrators that have been purchased, try not to place them in a small space, because this will increase the echo. In many cases, empty rooms and wooden floors will also increase the noise of the oxygen concentrator. The periodic popping sound in the oxygen generator is the sound of molecular sieve discharging nitrogen, which is a normal phenomenon. For people who are more sensitive to noise, we can choose low noise oxygen concentrator and link it through a long oxygen inhalation tube.

3: 5l oxygen concentrator uses air to produce oxygen, will there be less and less oxygen in the room?
Answer: Even the existence of an oxygen concentrator in a confined space will not reduce the oxygen in the space, because the 5l oxygen concentrator does not consume oxygen, but only separates the oxygen. When there is no oxygen concentrator, we directly inhale oxygen in the air and discharge carbon dioxide. When the oxygen concentrator is used to inhale oxygen, we still inhale oxygen and discharge carbon dioxide. When we breathe, we absorb very little oxygen (5%-10%), and most of the oxygen is returned to the room through our breathing. Therefore, the existence of an oxygen concentrator is not much different from our direct breathing indoors. Of course, even if this is the case, we still recommend opening windows for ventilation to ensure indoor air circulation.

4: Can ordinary 5l oxygen concentrator increase the oxygen concentration in the air?
Answer: No. Only an outdoor unit can increase the oxygen concentration in the air. The concept of an ordinary 5l oxygen concentrator is like a refrigerator, which can separate cold and heat and cool in a small range. The concept of an outdoor unit is like an air conditioner. It has a host installed outdoors, which can bring heat to the outside to lower the indoor temperature. The outdoor unit of the oxygen concentrator introduces outdoor oxygen into the room, so it can increase the oxygen concentration in the room.