Powerful Deodorizing & Disinfecting Bacterin Spray Refill 500ml, Set of 2. Can be used as a refill for Bacterin Indoor 280ml (approximately 2 refills). Directly deodorizes the source of pet odors! Safe even if pets lick it. Excellent effect on household garbage. New, unused, and unopened, but has been stored at home for about a month. Please refrain from purchasing if you are concerned. Thank you.