This is the Ozone Crawler. It retails for 72,600 yen. I only checked its operation once! It's practically new. I've stored it at home in its box. So, please understand that there might be some minor blemishes. It will be very useful during this winter season, when it's easy to get sick! We are waiting for price negotiations and comments. Ozone generation: 10-200mg/hr | External dimensions: Width 21.8cm Height 33.0cm Depth 21.8cm | Weight: 1.6kg Operating specifications: Switching operation of ozone and negative ions depending on the mode Accessories: Power adapter Ozone Crawler Ozone generator Humidifier Air purifier Deodorization Virus disinfection Influenza Norovirus Cold