Why timely maintenance of evaporative air coolers is essential for companies?

Why timely maintenance of evaporative air coolers is essential for companies?
  In hot and dry settings with low humidity levels, evaporative air coolers (also known as swamp coolers) are a good alternative to typical air conditioners. Air Cooler, which is a box-shaped cooling equipment, is affordable, durable, and energy-efficient. Unlike air conditioners, which use refrigerants to cool the air, evaporative cooling systems use water evaporation to cool the air. It also raises the humidity level in the inside air. The primary...