If you're looking for your recreational trimix diving certification, it is important to understand the differences between gas types and how they mix. Learn about Normoxic, Hypoxic, and Heliox dives and how to manage your equipment. A good understanding of how to maintain your body posture underwater is essential. These are the essential requirements for this certification. To get your card, you will need to complete several practical sessions in confined water.
Normoxic
The IANTD Normoxic Normmix Diver course is designed for divers who wish to be able to dive to 60m without the use of breathing air. The course also includes theory and confined-water skill practice. This course does not only cover theory but also covers four stage dives. Students learn skills to deal with emergency situations during these dives. Students can earn the CCR trimix certification upon completion of the course.
Technical diver training might be different from the other levels of trimix divers. A normoxic trimix diver may start with a bottom mix. A hypoxic trimix diver, on the other hand, must begin their descent in a travel mixture. This makes it more difficult as the diver must switch gasses during the first descent. Hypoxic trimix divers may also need to be able to dive longer due to the greater variety of gases they use.
Hypoxic
The SSI Hypoxic Trimix Diver course, among many technical diving courses, is the most prestigious. This course will teach advanced techniques and how to use multiple decompression gases systems. Students will also learn about the hazards and risks of technical diving as well as how they can respond to emergencies. Six of the dives will require you to use anoxia reduction equipment.
Normal air has a 20 percent to 21% oxygen content. Minimum is 18%. At sea, breathing normal air is safe as the atmospheric pressure is only one bar. Divers must use a mix of travel and oxygen when diving in water less than 18% oxygen. This will help divers breathe deeper. Normal air will not be sufficient for a 100 meter dive. Hypoxic divers need to use travel mixes in order to compensate.
Heliox
There have been many myths about diving and heliox since the Hans Keller tragedy. Some people were concerned about the long decompression times of helium, and others were worried about the potential for CNS effects. These myths were created by the fact that rare and expensive helium is. Hydrogen on the other hand is plentiful, inexpensive, and poses few toxicity concerns. Hydrogen can also be used at any depth.
The Navy Experimental Diving Unit (Navy) was one of the first diving units to investigate the science and practice of decompression. This research team was responsible for creating the first working Heliox tables over eighty years ago. They subsequently disproved the mixed gas myth. They have developed a decompression device that can reduce the risk of drowning while diving. Diving with heliox should follow all instructions.
Heliox 32
The Heliox 32 Trimix Diver is a perfect replacement for the Heliair diving mix. This gas consists of less than 21% oxygen. As a result, it is not only cheaper than air but is also less toxic. It is also recommended for diving at any depth. Before switching to this gas, there are several things you need to consider. You can read on to find out more about this gas. You might be surprised at how well it performs for your specific needs.
It is important to think about the dive type you will be taking when selecting a tank. Heliox tanks and nitrogen divers tanks should have lower levels of helium because they release oxygen at differing rates. Combining them can cause decompression illness and could be dangerous. Safety of a diving partner is also important, since they may be able and willing to share your weight.