The dew point of a refrigerated air dryer depends on several factors, such as the inlet air temperature and humidity, the design and capacity of the refrigeration system, and the operating conditions of the dryer.

In general, a refrigerated air dryer can typically achieve a dew point of around 35°F to 50°F (2°C to 10°C) at the outlet. This means that the dryer can remove most of the moisture from the compressed air, reducing the risk of corrosion, contamination, and freezing in downstream equipment.

However, the actual dew point of the refrigerated air dryer may vary depending on the specific application, the required level of air quality, and the maintenance and calibration of the dryer. It is important to consult the manufacturer's specifications and guidelines to ensure proper operation and performance of the refrigerated air dryer. And we can do it as low as 3~5℃.