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You get similar ones from alibaba from around $175 : https://www.alibaba.com/product-detail/Fresh-Air-Ventilation-Eco-Pair-Plus_1600706598634.html https://www.a

by funsi 2y ago

You get similar ones from alibaba from around $175 : https://www.alibaba.com/product-detail/Fresh-Air-Ventilation-Eco-Pair-Plus_1600706598634.html https://www.alibaba.com/product-detail/Fresh-Air-Ventilation...