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Since the beginning of deep mining for the acquisition of minerals or driving galleries, later tunnels, man has faced the problem connected with draining used and polluted air (the so-called mine air), and transport of fresh air to the workplace. Since time immemorial, mine air has influenced and prevented the work of miners and drifters, as well as of the mechanized technology. The most significant factors of air pollution include exhaust fumes of mechanisms used in the performance of work, blasting fumes and, ob...

Conditions of the microclimate prevailing in mine workings are one of the most important factors influencing on the comfort and safety of the working mine crews. This climate depends on parameters of the ventilated air stream and conditions prevailing in these workings. Parameters having the most important influence on the conditions of microclimate are temperature of the air and rock mass, humidity, velocity of air stream and average temperature of radiation of wall surface of the working. Nowadays, due to the la...