The AiroDoctor is a four stage filter. The prefilter catches coarser particles, activated carbon and HEPA filters particles up to 0.1μm (micrometers) in diameter. With the help of photocatalysis, the last and most effective filter stage, triggered by high-power LED modules in combination with an array of titanium dioxide (TiO2), 99.9% of particles are destroyed and safely rendered harmless.

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