Perma Pure offers a wide range of Gas Sample Dryers for your demanding applications. Perma Pure’s MD Series and PD Series dryers are the ideal choice for drying gas samples prior to analysis. Using our exclusive Nafion polymer technology, Perma Pure dryers can reduce the sample dew point to as low as -45°C without any measurable loss of analytes. The exceptional corrosion resistance of Nafion tubing allows for the conditioning of harsh samples, even those rich in acids like HF and HCl.