The Airsep oxygen concentrator separates oxygen from normal air. This oxygen is then used for medical purposes, such as helping babies to breathe.

The air intake filter at the back of the machine draws in air from the room. The oxygen-rich gas it produces comes out at the front ports at the front of the machine.

There are two flow meters which control the output oxygen levels. The left flowmeter lets you set the oxygen floor for the main central outlet.

Using the right flowmeter, you can control the oxygen floor for the second outlet on the right. The second outlet port only works when it is pressed in.

The power switch turns the machine on and off.

Above this, the hour meter measures the time that the machine has been running. There is a reset button allowing you to start recording the time from zero.

Again, there are three indicator lights that tell you about problems with the machine. The top light should come on if the machine is outputting a low concentration of oxygen. The middle light indicates a power failure. If the bottom light turns on, it means there is a serious system fault inside the case.

We can see how the oxygen concentrator works. Ambient air is drawn in through the gross particle filter at the back of the machine. The air is then moved through the fine particle filter at the side. Together, these two filters remove dust and particles to protect the machine and ensure that clean air is being used.

The air then passes through the intake muffler. This reduces the noise made by the machine and makes the air flow more smoothly.

Next, the air is drawn through a pipe into the compressor. The compressor uses alternating pistons to pressurize the air. This air exits the compressor through a rigid metal pipe.

Pressuring air makes it hot,so this cooling pipe is cooled by a fanto reduce the temperature of the compressed air. The air then exits through an outlet pipe at the bottom.

The compressor motor is started and run by the capacitor, which is positioned here at the top of the compressor.

There is also a high temperature switch here at the side. This is a safety device designed to switch the machine off if the compressor gets overheated during use.

Next, the compressed air is channeled through a series of solenoid valves. These control the flow and timing of air being fed into the sieve beds. Inside the sieve beds, a material called soy light removes nitrogen from the air through a process called adsorption. This leaves the remaining air enriched with the oxygen which is needed.

The sieve beds alternate. At any one time, one sieve bed is producing oxygen while the other one is regenerating. The oxygen produced by the sieve beds is passed out through the tubes at the top. The waste gases are expelled out through the exhaust muffler.

Here, the muffler disperses the unwanted gases, mostly nitrogen, out into the air, and it reduces the noise that this process makes.

There is another solenoid valve at the top. This one is a pressure equalization valve. It ensures that the oxygen leaves the machine smoothly and reduces the wastage of air.

The oxygen then passes to the product tank. This helps smooth the flow and maintain the purity of the oxygen before it is used. If the oxygen purity produced by the machine becomes too low, this is detected by the oxygen sensor unit inside the back of the machine near the top

From the product tank, the oxygen passes through to the flowmeters where the user can precisely control the oxygen output.

The user then connects a tube to either of the two ports to connect to the oxygen supply.