Dryer Selection: Refrigerated or Adsorption?
Choose by dew point: refrigerated for general use, adsorption for deep drying.
For 2–10 °C pressure dew points (general pneumatics, purging), refrigerated dryers suffice at the lowest cost. Below -20 °C (instrumentation, spraying, electronics), adsorption or combined dryers are required; combined dryers are becoming the mainstream choice.