As a copy editor, I reside in an office building eight hours of the day, five days a week. I, like many Americans who spend majority of their day in a specific space, can appreciate the importance of fresh but filtered air in my environment. This is what air to air heat exchangers are able to do; cycle in air from outside to keep the air we breathe indoors fresh and healthy. These systems can be used in industrial, commercial and residential settings. Air to air heat exchangers are beneficial for the breathers of air as well as to help maintain the health of the building itself. In industrial settings where chemical processes are constantly taking place and consequently the fumes from said chemicals linger in the air, a heat exchanger to refresh the air is important. Not only does it protect the lungs of the workers, but it also reduces the corrosive damage to the building's walls, ceilings and floors, which long-term exposure to chemical gases and fumes can cause. Reducing the humidity levels in the air is another major virtue of the air to air heat exchanger; lower humidity levels means there is less mold and mildew, both of which can also cause extensive corrosive damage to a building system. The positive characteristics of air to air heat exchangers may be enjoyed during any season of the year, depending on the settings utilized. The cost of running the air to air heat exchanger may vary during different seasons. For example, the winter months actually use less energy, because it is easier for the system to turn cold air into hot air when filtering in the air from outside while maintaining a comfortable temperature inside. During the summer, cooling down the hot air from outside uses more energy and therefore the cost goes up a bit. Being aware of such aspects may help a company balance out the difference.
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