Acrylic polymers are small moisture-regulating spheres that are used in the storage of cigars. The swelling crystals ensure optimally regulated humidity in storage containers such as the humidor. 20 grams of crystals are sufficient for the tank of an electronic humidifier. When using the crystals in a small passive humidifier, the 20 grams are enough for multiple fillings. The crystals should always be watered with distilled water for optimal cigar storage.