The Desiccant Reactivation Unit is specifically designed to recover saturated Envirogel (orange-indicating gel). It can recover 25kg of Envirogel and remove up to 4.5 litres of water in a six-hour cycle. It features a removable inner desiccant holder to allow users to replace the recovered silica gel easily. The Desiccant Reactivation Unit is incorporated with air circulation to prevent the backflow of evaporated moisture to the desiccant. It features a temperature monitoring and control instrument to ensure that the reactivation efficiency of the Desiccant Reactivation Unit is maximised. Input reactivation temperature control can be set manually by users. When the output temperature is similar to the inlet temperature, this indicates the completion of the reactivation process.