For eliminating animal odours, repelling insects, and eliminating airborne pollutants, while maintaining natural pureness. Pet Air remains simple with no unnecessary, artificial ingredients or additives. Will not harm mucus membranes. The balance of natural botanicals and citrus eliminates the need for chemical preservatives or additives of any kind. Pet Air is also aromatherapy (healing energy from nature's scents) basically recharging you and your pet's energy with ionized air.