Sweet PDZ Coop Refresher Neutralizes ammonia and odors in your feathered friends space. Featuring only 100% premium-grade clinoptilolite mineral, it has fast-acting odor neutralization and moisture absorption through a unique mineral action. It works with all types of bedding including shavings, straw, and paper. This all-natural deodorizer absorbs moisture and odors to help safeguard your flocks respiratory health, while helping keep the coop/run healthier. It also serves as a beneficial grit as it contains an excellent source of calcium. Sweet PDZ Coop Refresher is safe for both chickens and humans with no perfumes, masking scents, or chemicals. Full-circle green-earth mineral, that is harvested from the earth and can be returned to the earth in a useful and beneficial way.