Perma Pure’s MD-700 Large Diameter Nafion Dryer is now available! The MD-700 has been specifically developed for humidity control in particle measurement and aerosol analysis applications but can be used in a wide range of drying or humidifying applications. In order to minimize particle losses, a laminar sample flow should be maintained through the flow path of the dryer. The MD-700 addresses these performance needs while providing the moisture removal necessary to make accurate measurements across a wide range of flow rates up to 17 lpm. All moisture is removed in the vapor phase with a purge gas flow.