Mill Silent Pro is an efficient air purifier with medical-grade HEPA 13 filter, antibacterial coating and a pre-filter that removes 99.97 per cent of all particles (up to 0.3 microns) and harmful gases, including pollen, mould, cigarette smoke, odours, bacteria and viruses. The unit combines this high efficiency with a low noise level, predestining it for use in living rooms and bedrooms. The jury was also impressed by the elegant design: “The convex housing and gentle curvatures give the unit a friendly appearance and signal reliable cleaning performance.”