How to Dry Compressed Air

We open the drain located in the bottom of the tank of the Dewalt compressor all the time. However, when we want to dry something off with compressed air, we are still getting the parts all wet. What should we do, is there a water trap or filter recommended? This compressor is used in a body shop where my Formula S is being restored. I don't want to tell the owner what to do, but I don't want H2O mixed into my paint formula. Thank you.

View attachment 1715565832
Had same trouble, was told I needed 25’ of steel/aluminum/copper tubing to cool air temp before going into water and oil filters. I looped 40’ of copper tubing and then went to filters. I already had the time release drain on tank. Now air is less then 100° when entering filter/separators and water can be removed. It took care of my issue. I still use an extra filter before my 25’ of painting hose and disposable filter at paint gun when painting as an extra precaution.