Moso Natural, the natural scent-free odor eliminator. Moso Bag is the natural way to freshen the air. Instead of covering up odors with artificial fragrance, the Moso Bag actually absorbs the odor and eliminates it for good. It does not need batteries or wires to work, it does not smell like anything and has absolutely no chemicals in it. Once a month, place the bag outside for at least one hour to rejuvanate. It will reach the end of its effectiveness after two years. After that, recyle the bamboo charcoal into your garden or potted plant. Bamboo charcoal will enrich your soil and help plants to absorb nutrients and moisture. These Mini's work best in shoes, sportbags etc. There are 2 Mini's in the packaging.