The OffGridBox Chiara is an ultrafiltration system designed for purifying fresh water, including from wells and boreholes. It uses 0.01-micron ultrafiltration, offering bacteria- and virus-free water. Filters can be backwashed with prepurified water to reduce maintenance. The system has a nominal flow rate of 5–20 liters per minute, and installation requires minimal setup. It includes UV sterilization and optional activated charcoal.