Panasonic Space Deodorizing and Disinfecting Machine, Ziaino Model Number: F-JX1100V Manufactured in 2020 Excerpt from the instruction manual: Generates hypochlorous acid by electrolyzing salt water to disinfect and deodorize the space. Hypochlorous acid is used for disinfecting swimming pools and baby bottles, purifying tap water, and washing vegetables. * Includes a sample salt tablet and a separate bottle (approximately 300 tablets, unopened) that was sold separately (package opened, untouched). Please check the images. Cleaned as much as possible. Instruction manual included (some folds and slight stains?). I sent this to my grandmother, but she didn't know how to use it and it's in a clean condition because she didn't use it much. The recommended replacement for the black filter (protective element) in the 8th image is once every 3 years. As this is a hygiene-related appliance, you may want to consider replacing the black filter. By the way, there are no pets or smokers in the house. Please understand that this is a used item, not a new one.