The Dry Air Purge reduces the dewpoint of the chamber air to protect moisture-sensitive test samples. It is also used for our low-humidity option. Recommended for temperature cycling tests where the rate is faster, or the test sample is more massive to reduce the risk of condensation due to temperature differences between the air and test samples. There is a manual control valve and an exhaust vent. The purge can be turned on and off via the controller's time signals.

For more information on chamber how and why to use a dry air purge, see this article: De-humidification (or how to lower humidity)