One can think of installing multiple air conditioners, but this is not a good solution, let alone economical. A stand-alone unit is not as adequate as the centralized system in keeping the humidity levels checked for larger spaces. Dehumidification of air makes the air feel comfortable and on top of that it improves the quality of the air. Basically, by doing so a centralized system can be used to create a healthier environment. Hence, a centralized system is an optimal choice if you want optimal air quality inside the establishment.