... pleasure. Shelf life: 3 year. Nontoxic, biodeg Crystal solid air freshener , the smell is fragrant with ... public planesof entertainment use.Description supply type Crystal air freshener packing OEM/ODM Delivery time ... 30days 1, Features:*Last long: 4 to 6 weeks;*Smells well: Soft, refreshing and pleasant;* ... and odor-free;4) Replace prodcut after approx. 6 weeks.6, Certificates:ISO 9001, GMP, ITS, SGS, ...