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Parasol is the generic name of a family of products consisting of comfort modules for cooling, heating and ventilation. The modules are designed to supplement one another and together create optimal room comfort. The comfort modules operate on a basic principle that is closely akin to that of chilled beams. The difference is mainly that the comfort module distributes air in four directions instead of two. This maximizes the area where supply air is mixed with room air so that the modules discharge air at high capacity, yet they do not occupy more ceiling space than necessary. The comfort modules are also optimized to quickly mix the discharged air with room air providing better comfort in the room. In heating applications, this technique can be advantageously utilized to efficiently provide heat along the ceiling. The average lifetime of the product is 25 years.