Cold cannon is intended to be used against a variety of pests. Many insects are sensitive to cold, like many rodents particularly are very sensitive to cold cubs. Those to be controlled in an ethical manner, with the least possible environmental impact, efficient, inexpensive and low labor risk for the operator. Death induced by hyperthermia, associated with very little discomfort. Interviews with climbers near death from hyperthermia explains that there is virtually no discomfort occurs. This occurs only when heated, which naturally is not relevant. This achieves the goal of high ethics and low environmental impact. Liquid nitrogen is inexpensive and offer high cooling effect. Cold cannon sucks in air, mixing the liquid nitrogen, and blowing it against the scope with spigot or hose. The temperature is adjusted to the amount aftilsatflydende nitrogen. Liquid nitrogen is added manually or by means of control in which the temperature of the exhaust air is measured and the control lowers or increases the amount of nitrogen.
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