Great value! There are some noticeable stains, such as around the ozone generator and slight discoloration on the main unit. Also, the filter is almost new, but one side of the string is detached. There are multiple photos available. Please check them. I can take photos of any areas of concern if needed. *Price negotiations are welcome to some extent. This is a used item, so please understand that it is non-refundable. Includes instruction manual and remote control (unused). However, there is no manufacturer's warranty due to it being a used item. Product Description Video https://vimeo.com/454240722 Made by Tamura Techo, the only domestic manufacturer of medical-grade ozone generators. Color: White Weight: 10.5kg Product Dimensions: W400 x D240 x H680mm Applicable Area: 100㎡ Retail Price: 305,800 yen Maintenance is simple: approximately once a month, remove dust from the filter with a vacuum cleaner or brush, and wipe off any white deposits around the ozone generator with a cloth! You are free from daily maintenance such as water washing or water replacement, which are common with other models. Suitable for use in hospitals, pharmacies, hotels, offices, large living rooms, banquet halls, and halls. This is a top-of-the-line model with high air purification and ozone disinfection/deodorization functions. High-concentration ozone is used in environments without people for thorough disinfection. Low-concentration ozone can be used in environments with people, disinfecting slowly over time. As a measure against hay fever, it breaks down and removes pollen. This is a must-have item for those with hay fever during the upcoming pollen season. Insect repellent effects can also be expected. (Cockroaches, bed bugs, etc.) Type: Ozone disinfection/deodorization machine Maximum applicable floor area (air purification): Approximately 10 to 60 tatami mats Replacement parts: HEPA filter and activated carbon filter set for 19,800 yen (tax included). UV lamp for 9,900 yen (tax included). The manufacturer recommends replacing each after approximately 1 year of use. *If necessary, we can replace the filter before shipping after prior consultation. (In that case, the above parts cost will be added. Please understand.) *When shipping, we will attach the shipping label to the outer box. Please understand. *We do not accept comments for price research purposes. Please provide a specific price when negotiating. We will not answer questions like "How much can you lower the price?"