Used where the concentration of liquid aerosols in compressed air are greater than what can be filtered by the 3M Compressed Air Filter and Regulating Panel W-2806 alone.This filter has a maximum airflow of 50 cfm at 150 psi. The temperature range is from 32 to 130(deg)F (0 to 54(deg)C). Filter efficiency is 99.97% with the 3M High Efficiency Filter Element W 3013 4. With this filter aerosols are filtered combined into larger droplets and collected at the bottom of the bowl where an automatic float drain removes them from the housing.