There are no complicated, expensive or rare components in this device. There are tens of thousands of factories in the world where it can be produced. The production cost will be approximately $ 10. http://sql.vov.ru/militarydivers.htm
The efficiency of the device can be significantly increased if additional elements are used, which can also be simple.
The device is very easy to use. No complicated instructions or training required to use, a simple picture is enough. This device significantly increases the effectiveness of the rescue suit in cold water. It can be used even if a person is in the water without a suit – it is possible to get up to several hours of safety. 参照先
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