Thank you for viewing. This is a set of two: Maxell's ozone disinfection and deodorizing device Ozoneo Aero Plus (OZONEO AERO+) Model number: MXAP-DAE280-BK *Includes the instruction manual, but the original box and cleaning brush are not included. There are no noticeable scratches on the surface, but there may be minor scratches and scuffs, so please refrain from purchasing if you are sensitive to such imperfections. Only those who understand that this is a used item, please consider purchasing. [Product Description] ① Disinfection and deodorization by ozone: Uses the strong oxidizing power of ozone to decompose the source of odors and bacteria. ② There are 3 levels of ozone airflow modes to choose from, depending on the size of the room. ③ Digital temperature and humidity display: The main unit has a temperature and humidity display function. However, it does not have the function to adjust the temperature or humidity. ④ Economical and quiet design: Even when used continuously for 24 hours, the electricity bill is economical, with a maximum of about 93 yen per month (calculated at a new electricity rate standard unit price of 27 yen/kWh). ⑤ Quiet design is implemented so that it can be used comfortably even in places where silence is required, such as bedrooms. ⑥ Timer function: It is also equipped with a timer function that automatically turns off after about 8 hours. ⑦ Applicable tatami mat size: Supports up to 20 tatami mats. [Precautions for Use] ① Necessity of ventilation: Avoid using in places without ventilation. ② Installation location: Do not place in places with high humidity or dust, places exposed to direct sunlight, or unstable places. Placing it near a TV or radio may cause image distortion or noise. ③ Consideration for physical condition: If you are concerned about the peculiar smell of ozone or if you feel changes in your physical condition, such as a headache, during use, stop using it, ventilate the area, and consult a doctor. It is recommended that those with a history of asthma or other medical conditions consult a doctor before use. ④ Effects on animals: When using in an environment with small animals, pay attention to the condition of the small animals. ⑤ Effects of ozone: Be careful as items that are prone to rust and natural rubber are likely to deteriorate when exposed to ozone. ⑥ This product is intended for use in various places such as living rooms, bedrooms, and kitchens in your home.