Air coolers, also known as evaporative coolers, work by evaporating water to cool the surrounding air. The cooling effect they provide is dependent on various factors such as the humidity level, ambient temperature, and airflow. Generally, air coolers can lower the temperature by a few degrees below the ambient temperature.
The cooling capacity of an air cooler depends on the relative humidity of the air. In dry climates with low humidity, air coolers can achieve more significant temperature drops. However, in areas with high humidity, the cooling effect may be less pronounced because the air already contains a significant amount of moisture, limiting the evaporative cooling potential.
As a rough estimate, air coolers typically lower the temperature by 5 to 15 degrees Fahrenheit (2.8 to 8.3 degrees Celsius) below the ambient temperature. Keep in mind that this range can vary depending on the specific model, size, and conditions in which the air cooler is operating.
It's important to note that air coolers are most effective in dry climates and may not provide the same level of cooling as air conditioners. They are also better suited for open or well-ventilated spaces since they rely on the movement of air to evaporate water effectively.