Caryaire Multi-stage Cooling System (MCS) combines Indirect and Direct Evaporative Cooling within one unit to achieve a comfortable environment using 100% fresh air, without the use of mechanical refrigeration. Multiple stages of cooling offer an effective energy-efficient reduction of heating loads. High efficiency plug fans are used in blow-through configuration. The unit comes with VFD as a standard, and is BMS-compatible. The applications of this product include manufacturing facilities, distribution centres, marriage halls and banquets, large retail stores, paint shops, gymnasiums, dairy farms, prayers halls and auditoriums.