Bring your air samples in the right condition for the analysis by a gas chromatograph (GC). Improve the analytical quality of your gas chromatographic measurements by removing dust and excess humidity from your air samples. The built-in Perma Pure Nafion™ dryer is able to remove water without stripping hydrocarbons. The quality of the dried air sample is continuously monitored with a humidity sensor (optionally an alarm threshold can be communicated to the GC software).