Humidity Exchangers (FC) Series

The FC Series humidifiers from Perma Pure are designed for applications requiring precise moisture control in gas streams. Typical uses include calibration of gas analyzers, fuel cell research, materials testing, and environmental monitoring. Their ability to deliver gas with controlled and stable humidity makes them ideal for lab environments and test setups. They also ensure consistent and reproducible results in automated measurement systems.

The FC Series uses selective permeation of water vapor through Nafion™ membranes to humidify gases actively. These membranes allow only water vapor to pass through while blocking all other gas components. Depending on the configuration, humidification is achieved via liquid water contact or steam in a counterflow.
This technology ensures highly accurate moisture control without generating aerosols.

The FC humidifiers deliver constant relative humidity over a wide range of temperatures and flow rates. They support both continuous operation and rapid humidity changes, for example, to simulate real conditions in fuel cells or emissions testing. Thanks to their modular design, various sizes and performance levels are available. This allows precise adaptation to the specific application.