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Now, if you are using a standard oxygen tank, the regulator's built into the tank, you would not need these. But if you are using pin index type systems, you would have a regulator that fits onto the cylinder. And this is a typical basic regulator. What we have got here is a steel construction, and the actual unit would have to be service and also oxygen cleaned. We need to make sure there is no build-ups of any carbon deposits on there which can cause risks of fire. What you have got on here generally is, look at the end. Here's a control knob. And from here you can change the flow rate. Within this one, it goes from nought up to 15 litres per minute. You then can turn that off in the same way. We have a barbed outlet. This is where the oxygen tubing will push on and secure. there is no clamps or anything. It's just a push fit. The gauge, which shows the amount of oxygen that's left in the cylinder. The clamp on the end, which is what secures it in. And then in here, you will see the two pins. These are the locator pins for the pin index and the hole up here is where the actual oxygen's going through. On the outside is the 02 washer. This is something that you need to make sure is clean, and you may need to replace this on a regular interval.

The standard construction is a very basic unit. This would allow you to have one constant feed going to one patient. It's a standard one, you would use a single-patient regulator. There are more complicated versions of this. This one here is slightly different. What you have got here is a single constant valve outlet. you have also got an adapter which will then go up to, instead of 15 litres a minute, it goes up to 25 litres a minute. Gauge the same, and you have these other two areas here. These are for demand valve systems. What you will do with this is, you take the demand valve hose and put it on the clip, and you can just clamp that on. Once that's screwed on, you would be able to use a standard demand valve, so that with the demand valve, what they breathe in, whatever they want, they can have. It works in a very similar way to things like Entonox, they are cylinders.

That's the demand valve. This particular one's got two demand valves. Now, this type of unit here would be used in any specialist areas. Again, typically, this is a type of thing you would use within the scuba diving world, where you may well have two injured people. One could go on constant flow while two could go on demand valve. Now when you have got demand valve and constant flow, obviously, the cylinder is not gonna last as long, so you need to make sure you have got enough oxygen supply. That's the other planning thing you need to do when you are looking at oxygen. Make sure you have enough oxygen until you can get that person to emergency medical care or the ambulance turn up, depending on where you actually are. These regulators are straightforward, but you must make sure they are cleaned properly, and properly 02 cleaned. Not just you wiping them over. They must be properly cleaned. They must be serviced. They must be used correctly.