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This product was designed based on a natural phenomenon where the rain washes contaminants from the air. This air purifying system sucks in the contaminated air through the filter, which does not need to be replaced and washes it with clean water again to provide air that is clean and fresh. Users can see how the contaminated air is washed in a transparent section and can easily pull out the water tank from the top, making it very convenient to fill and clean the water tank.