Photo 1 of Stadler Form Dual Filter H12, compatible with Roger / Roger big air purifier, long life up to 1 year, easy filter change, combined HEPA H12 and activated carbon filter

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Photo 1 of Stadler Form Dual Filter H12, compatible with Roger / Roger big air purifier, long life up to 1 year, easy filter change, combined HEPA H12 and activated carbon filterPhoto 2 of Stadler Form Dual Filter H12, compatible with Roger / Roger big air purifier, long life up to 1 year, easy filter change, combined HEPA H12 and activated carbon filter