Air filter efficiency and what is the relationship between air temperature?

The temperature of the compressed air in the oil and water, affecting the filter efficiency. Such as: when the temperature is 30 ℃, the flow through the filter of oil content is 20 ℃; the five times when the When the temperature rose to 40 ℃, the flow through the filter of oil content is 10 times of 20 ℃. So the filter typically installed in the low temperature of compressed air system.