What is the difference between an air cooler and an air conditioner?

An air cooler does not actively cool a room like an air conditioner, but it refreshes it more effectively than a fan. The temperature in the area in front of the air cooler drops by 4 to 5 degrees Celsius. An air cooler not only cools, but also increases the humidity in a room. An air conditioner, on the other hand, makes the air drier.