Designed to "dry clean" rugs using millions of tiny, biodegradable, recycled cellulose sponges to absorb dirt from carpets. Sprinkle the powder on carpets, work it in, then vacuum it up after 30 minutes. 100% recycled and biodegradable ingredients. Ideal for wool and stain resistant carpets. Bag contains 26 to 1/2 ounces (750 grams) of powder.