More powerful than baking soda! Like a magnetic sponge, the Moso Bag uses ionically charged moso bamboo charcoal to actively capture odors, moisture and ethylene gas from your refrigerator, freezer, cooler or lunchbox. The Moso Bag also helps your produce last longer by absorbing ethylene gas, a naturally occuring gas from fruits and vegetables that causes them to ripen quickly. Try keeping a Moso Bag in each produce drawer. With routine rejuvenation, the Moso Bag lasts up to 2 years! Simply place outside in the sun once a month for one hour. After two years as an air purifier, cut open the charcoal bag and sprinkle into your garden to promote plant growth. A space-saving suction cup is included that allows you to hang the Moso Bag out of the way. Contains 75 grams of moso bamboo charcoal.