Thank you for viewing. This is a 3-piece set consisting of: one 600mL refill pack (unopened) of humidifier disinfectant, one opened pack (approximately half remaining), and one main bottle (used, empty). Brand: Dr.CLENZ Product Form: Liquid Scent: Unscented Product Use: Humidifier Material Features: Odorless Product Volume: 300 milliliters (main bottle) 600 milliliters (refill) Quantity: 3-piece set (1 unopened refill, 1 opened refill, 1 empty main bottle) [Product Description] [99.8% spatial disinfection of 15 types of bacteria and viruses with platinum catalysis] The main component of Dr.CLENZ's humidifier disinfectant, "nano platinum (platinum)," has been shown to be effective against many pathogens in functional measurements conducted by the Kitasato Environmental Science Center. [Strong decomposition of 8 malodorous components] While the passing rate for deodorizing products is "70-80%," it has been certified by the BOKEN Quality Evaluation Organization to show "92-99%" effectiveness against 8 malodorous components. [Creating a room that keeps bacteria away with "spatial coating"] This product not only disinfects but also has a "spatial coating effect (antibacterial)." [“Safety” recognized by the Ministry of Health, Labour and Welfare] The main component of Dr.CLENZ's humidifier disinfectant, "nano platinum," has passed six safety tests: cytotoxicity test, oral administration toxicity test, skin primary irritation test, skin sensitization test, skin patch test, and reverse mutation test (conducted by the Institute of Life Science). [Easy to use / Just "push" into the tank] Conventional products were the type that you poured in with a cap, but there were complaints that the cap was small and spilled, so we adopted a pump format. It has a simple design that blends in with the interior. Thank you very much for reading to the end. I am a smoker, but I do not have any pets. Please confirm the above and purchase if you are interested. If you have any questions, please feel free to contact us via message.