Dry Room

Dry rooms typically aim for a dew point of -30°C or lower, equivalent to less than 1% relative humidity (RH). Requirements are often expressed in dewpoints as the equivalent relative humidity is close to zero.

Clean rooms and dry rooms have specialized designs and equipment, but their focus differs [1].

References

1. What is a Dry Room? A Comprehensive Guide, Allied Cleanrooms
2. Lithium Battery Dry Rooms, DRYAIR