Fan-tastic!
IT goes without saying that for safety reasons, solid ventilation systems need to be in place in mining environments, whether above or below the ground. Ventilation is the control of air movement, its amount, and direction, and although it contributes nothing directly to the production phase of an operation, the lack of proper flow can cause lower worker efficiency and decreased productivity, increased accident rates, and even absenteeism. Air is necessary not only for breathing, but also to disperse the chemical and physical contaminants such as gases, dusts, heat, and humidity. Underground mine ventilation provides a flow of air to the workings of a mine of sufficient volume to dilute and remove dust and noxious gases (typically nitrous oxide, sulphur...