The principle of Natural Ventilation, i.e. thermodynamic ventilation, provides for calculable temperatures in working areas in a very reliable way. This is exactly the area where your staff and machinery have to perform at their best.
Most satisfactory results in areas with high heat emission have been achieved by implementing the principle of Natural Ventilation, e.g. steel plants, glass industry, forging plants, power plants, maintenance halls and ware houses, workshops etc.