Rainbow 5 pack of Passive Activated Carbon Air Filter/Air Fresheners, each in decorative brocade fabric bag. One of each color we stock. * Each attractive brocade bag contains a 240 gram packets of bamboo charcoal granules. * Bamboo Charcoal helps improve indoor air quality by absorbing and trapping odors, allergens, and harmful VOCs. * Re-usable for years, just place in bright sunlight for a couple hours twice a month to renew odor absorbing capability of the charcoal. * The activated carbon in these air fresheners is derived from environmentally friendly bamboo.