◎ Product Introduction This is the "Ozone Cruller (OZCR400)" ozone generator from Ozone Mart. This model can switch between low concentration (10mg/hr) and high concentration (200mg/hr), allowing you to use it for everything from everyday odor control to situations where you want to thoroughly refresh a space. It also features a negative ion mode (4,000,000/cm³) and a night mode that is easy to use when sleeping. You can switch modes with the push of a button, and it has a cylindrical design that makes it easy to place anywhere. The recommended coverage is approximately 12-20 tatami mats (22-36㎡), making it suitable for use in living rooms, offices, stores, and other spaces. 【Important Notes for Use】 Ozone can be irritating at high concentrations, so the high-concentration ozone mode is recommended for use in unoccupied environments. After use, odors may remain, so please ventilate as needed. 【Product Condition】 The product was used for a short period after purchase, so it is in near-new condition with almost no scratches or stains. It is working without any problems and is still in good condition for use. Accessories include an AC adapter and instruction manual. ◎ Product Specifications Brand/Handling: Ozone Mart Manufacturer: Earth Walker Trading Product Name: Ozone Cruller (Ozone Cruller) Model Number: OZCR400 Body Size: 17.5 × 17.5 × 26.5 cm Weight: Approximately 1.6 kg Power Supply: AC100V (50/60Hz) ・ DC12V Power Consumption: 10W Ozone Generation: Low concentration: 10mg/hr / High concentration: 200mg/hr (high concentration operates for 30 minutes) Negative Ions: 4,000,000/cm³ Modes: Low-concentration ozone / High-concentration ozone (unoccupied recommended) / Negative ion / Night Recommended Coverage: Approximately 12-20 tatami mats (22-36㎡) 【Notes】 ・Since the perception of condition varies from person to person, those who are concerned, are fastidious, or are looking for a perfect product should consider carefully. Please purchase only if you understand that this is a "used item." ・Returns will not be accepted after the receipt evaluation. If there is a problem with the product, please contact us before the receipt evaluation.