Neutralize ammonia and odors in your feathered friend’s space with Sweet PDZ Chicken Coop Refresher. Featuring only 100% premium grade clinoptilolite mineral， it has fast-acting odor neutralization and moisture absorption through a unique mineral structure and works with all types of bedding including shavings， straw and paper. This all-natural refresher serves as a beneficial grit as it contains an excellent source of calcium. It is also safe for both chickens and humans with no perfumes， masking scents or chemicals. Made in the USA， Sweet PDZ Chicken Coop Refresher enhances nutrient performance in compost and gardens after your beaked buddy is done with it.