Refrigerated vs. desiccant: where to start
Use this to narrow down the type. We still check the exact pressure, inlet temperature, dew point and manufacturer correction factors for the dryer we quote.
Swipe or scroll the comparison table sideways on small screens.
| Selection factor | Refrigerated dryer | Desiccant dryer |
| Typical pressure dew point | Near +37°F / +3°C for many standard units | Low pressure dew points such as −40°F / −40°C depending on model |
| Common fit | General indoor industrial air and moisture control | Very dry air requirements, some cold-exposed lines or sensitive processes |
| Energy considerations | Refrigeration/compressor and control energy; cycling technology may vary with load | Regeneration energy and/or purge-air losses depend on design |
| Upstream requirements | Bulk water control and conditions within manufacturer limits | Inlet water and oil aerosol prefiltration per OEM specification |
| Selection must verify | Flow corrections, inlet temperature, ambient temperature, pressure, power and dew point | Delivered flow, purge requirement, PDP, pressure drop, control system and filtration |
Typical values for reference, not an ISO 8573-1 certification or a promise that your system meets a regulated standard. For corrected capacity, purge air and running costs, see the refrigerated vs desiccant air dryer selection guide.
For a recommendation, send how dry the air needs to be, peak flow, lowest pressure, inlet temperature and your ZIP. Ask for a dryer recommendation