
There are several types of rebreathers: closed circuit, open circuit, and "mixture" rebreathers. They all have their advantages and disadvantages. This article will describe the most common types of rebreathers, and what to look at when choosing one. The last section will discuss which rebreathers are safe for marine life. Whichever rebreather you choose, be sure it is compatible for the environment that you'll find yourself in.
Semi-closed circuit respirators
If you're comparing semi and closed circuit rebreathers, it might be tempting to go with a closed circuit model. However, these two types of rebreathers are largely similar in principle, and the primary differences are in the way gas is delivered and mixed. Your specific needs and goals will determine which type of rebreather you choose.

Continuous-flow "mixture rebreathers"
Most continuous-flow breathathers are designed for long dives. But the newest versions of these rebreathers allow you to breath with the same oxygen content as your natural air. This enables the user to breathe more easily, while still being protected from bacterial contamination. Rebreathers are more reliable and durable than ever. They can be used safely and won't cause any irritation if they are properly maintained.
Purging oxygen rebreathers
For constant gas flow, the rebreather diver needs to have an oxygen source. A cylinder attached to the diver’s rebreather stores the source of gas. Pure oxygen or liquid oxygen increases the work required to breathe. Rebreather divers must be able to inhale both pure oxygen and liquid oxygen. There are two kinds of rebreathers: passive and active addition rebreathers. Both types of rebreathers are similar. The difference between these rebreathers is the volume of gas. A diver should be aware of both methods, as this is the most effective method of preventing hypoxia.
Rebreathers don't disturb marine life
Rebreathers don't cause any harm to marine life. Rebreathers offer underwater diving a quieter experience than open-circuit divers, which are noisy with gushy and clogged gas. Rebreathers are much more comfortable than other diving equipment. Therefore, the only thing you need to worry about is how comfortable you'll feel breathing.
Cost of rebreathers
Rebreathers can be an important medical tool for anyone in the military, law enforcement or other high-risk environments. Increasing awareness about the safety benefits and cost savings of rebreathers has driven the development of the industry. The high costs of the devices could discourage some people from using them. Listed below are a few tips to reduce the cost of rebreathers. Continue reading to find out more.

Safety concerns for divers using Rebreathers
Although safety concerns surrounding rebreathers may be rare, they are still a concern. Rebreather diving is up to 10 times more risky than open-circuit scuba, according to some studies. Rebreather diving is safer than base jumping and skydiving, with fewer fatalities. Rebreathers must be dedicated to following all safety precautions in order to reduce the risk.