I have several of these filters and have been using fragrance in them for over a year. While the filter is amazing, the scent cartridges just don't work. They're too expensive for a small piece of impregnated paper that dries up in a week. This is new, they are the same thickness, new and old. I bought this item from several retailers, here is what you get. This is not a foul smelling disposable cartridge.
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