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Green DryPurge® Dehumidifier – GDP Series

Bry-Air’s Green DryPurge® (GDP) Dehumidifiers is the ideal solution for all your low dew point job requirements. They are the perfect saviour from moisture menace in your high demand Dry Rooms, critical for lithium battery manufacturing.

The GDP dehumidifiers are specially designed and engineered to control moisture levels from -40°C to -80°C dew point depending on the hygroscopic material processing being carried out. Tailored exclusively for Lithium Battery manufacturing and embedded with Patented Green DryPurge® (GDP) Technology, the dehumidifier from Bry-Air is the most energy efficient dehumidifier for <1% RH dry rooms.

Click here for more information on Dry Rooms, Patents and some of our esteemed customers globally.


  • Highest low dew point supply air CMH/kW of regeneration: High Performance Efficiency/Energy Efficient
  • Single Rotor Machine: for as low as (-) 80 °C
  • High Performance Rotor: pH neutral, water washable
  • Own Rotor Manufacturing
  • Performance Demonstration (Type Test): each design can be pre validated in our dynamic test lab
  • Manufacturing Capability and Quality Certifications
  • Unit Construction: robust, durable, > 20 years life
  • Adjustability of Fresh Air Fraction
  • No Post Cooling Coil Required: feature of patented technology
  • Patented DryPurge® Technology


Bry-Air’s Green DryPurge® (GDP) Dehumidifiers ensure recommended Dry Room conditions for lithium battery manufacturing, safety glass, automotive hybrid batteries, medical devices, very low RH Pharma production and a selective few other niche applications like special grade coloured nylon blended bottles, etc.


*DryPurge®  is proprietary technology of Bry-Air and is patent protected in several jurisdictions. Details are available at


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