Lasts up to 70 days (Based on low setting for Freshmatic device model RB066). Fresh new day. Always fresh. Suitable for use around pets (Suitable for use around pets, when used as directed. Do not place next to caged pet areas and/or aquariums. In case of adverse effect on pets, call the helpline at 1-800-228-4722 or contact your veterinarian). 24/7 Pet odor neutralization. Nothing but the ingredients you need. Great fragrance. No added water. Free from: Phthalates, acetone. Helpers: C13-14 isoparaffin, carries the fragrance. Butane, hydrofluorocarbon 152a, propane. Propels the fragrance. Environmental Tips: Please recycle when empty. This steel can is recyclable.