What is Nano Mineral Crystal Activated Carbon? Nano mineral crystal activated carbon is made of activated carbon with rich porous mineral adsorbents (sepiolite, diatomite, bentonite, and attapulgite), manufactured by patented technology. The product is in shape of tiny black mineral crystal beads in 2-3 mm diameter. Studying its microstructure, one can find that the mineral crystal has unique regular structure, containing large amount of nano-scale pores in size of 2.7Ã…-9.8Ã…. The micropores in such scale have strong adsorption ability for gas compounds of Amy grade and nanometer molecules. Especially, because the surface of the micropores is polar, it shows strong attraction to polar molecules. Thus the micropores can selectively adsorb polar molecules such as formaldehyde, carbon monoxide, sulfur dioxide, ammonia and other toxic and harmful non-polar substances including benzene and xylene as well. Furthermore, at temperature around 40-50 ? (104-122 ?), the mineral crystal can be simply desorption and regeneration. In summary, for its excellent adsorption ability to polar molecules, its large surface area due to the nano size of micropores, and its relatively low desorption temperature, the nano mineral crystal activated carbon can be made into a sort of effective, reusable, and eco-friendly air purify material. 100% Customer Satisfaction Guaranteed Our mission is providing a SIMPLE solution to some ESSENTIAL issues in life, with high quality product and services, and make every one of our customers happy with what he or she purchased from us. If you are not satisfied with our product, please feel free to contact us to get a full refund.EXTRA LONG LIFE SPAN: Effective for up to 3 years by rejuvenating the bag under sunlight for 3-5 hours monthly. HOW TO USE: Place the bag anywhere that needs air purifying: in wardrobe, closet, bathroom, car, refrigerator, pet area, gym bag, shoes, and more. It works 24/7, operates silently. INGREDIENTS: Activated carbon with rich porous mineral adsorbents sepiolite, diatomite, bentonite, and attapulgite manufactured by patented technology. Nontoxic, chemical free, fragrance free, clean and eco-friendly. USE FOR: Effectively remove unpleasant odors, moisture, smoke particles, and harmful gases including formaldehyde, benzene, ammonia, and carbon monoxide by adsorption, not by masking. Great home warming gift. PACKAGE INCLUDES: One 8.8 ounce linen bag, sealed in a plastic packing bag.