![]() ![]() Let’s avoid the technical jargon and discuss the concept in its purest form.Īs an object or person descends in water the amount of pressure on them is increased because of the weight of the body of water. This was resolved not only considering dead air space, but also the second reason behind limiting the length of snorkels: air and surrounding water pressure. Reason 2: Water PressureĮxperts have determined that the maximum possible length for a snorkel without sacrificing safety is 16 inches. ![]() It only prevents the reintroduction of carbon dioxide. However, this does not decrease the amount of dead air space that needs to be overcome during inhalation. A valve is then used to control where the air can flow. This requires one tube for inhaling air and a second tube for exhaling carbon dioxide. One possible technique that can be used to overcome this problem is the dual-tube arrangement. This way the additional dead air space is kept to a minimum without overburdening your respiratory system. That is one of the main reasons why the snorkel tube must be designed carefully and often very short. Additionally, the amount of carbon dioxide stored in the dead air space, and the amount of carbon dioxide that would be inhaled would increase. If you have a larger or longer snorkel, then it would increase the work needed to inhale to take a breath. Second, it becomes another chamber that stores small amounts of carbon dioxide during respiration. The problem here is two-fold.įirst, it is, however, another obstacle for the body to pull air past. When a person is using a snorkel then that snorkel becomes yet another dead air space.
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