PureAura is a high-efficiency portable mini air purifier designed with humanitarian technology at its core. It’s designed for use in small spaces such as Hong Kong’s subdivided units (SDUs). Standing out for its affordability, portability, high efficiency, compactness, ease of assembly, and low power consumption, the PureAura can operate continuously for 40 hours using a small 10,000 mAh USB portable power bank. It’s scientifically proven to reduce indoor PM 2.5 particulate levels by 80% in a short period, and can reduce levels to below 5 micrograms/cubic meter with sustained use, as recommended by the World Health Organization’s global air quality guidelines.