ActiveAir, by Yoo-Jin Jung, Ines Marques, Umar Hossain, Sam Cryer and Sabina Weiss is a dynamic footwear concept that “directly filters the air at ground level through the soles of our shoes. With every step taken up, a one-way valve lets in polluted air which is then pushed out through the layers of filters in the sole when you step down – trapping the particulates and expelling clean air. Thinking about how lungs work: a large opening (our throat) splits into multiple consecutive branches (bronchi) to reach the maximum possible surface area (alveoli). ActiveAir has larger inlet valves near the top of the shoe, which split into branches to direct air across the whole filter in the sole – allowing deeper penetration, maximising the surface area of the filter used, and increasing purification efficiency. The denser the filtration material, the smaller the particles that can be trapped. ActiveAir is currently investigating materials to filter out particles as small as 2.5 µm (PM2.5), whilst providing optimal haptic feedback to the users step.” – via jamesdysonaward.org
ActiveAir is in the running for the 2018 James Dyson Award, to read more about it head here.
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