Humidity Chamber Features Construction : Chamber - M S duly Powder Coated with S.S. Interior and 'PUFF' Insulation Cooling System : Fan Cooling for uniform temperature & Humidity. Controller : Electronic temperature controller Cum Indicator. Controls : Digital humidity controller and Indicator control the humidity in the Chamber from 15% humidity to 95% humidity with an accuracy of ±3% humidity. Refrigerants : Non - CFC Environmental Friendly Gases. Compressor : Hermetically sealed compressor which are Permanently Lubricated and sile