【Neck-worn Air Purifier Neck Barrier】 This neck-worn air purifier generates 5 million negative ions and boasts a 93% sterilization rate. - Product Name: Neck-worn Air Purifier - Model Number: SY-127 - Ion Generation: 5 million negative ions - Sterilization Rate: 93% - Accessories: USB cable (for charging), strap Thank you for viewing. 【Product Information】 ・Product Name: Neck-worn Air Purifier Neck Barrier ・Model Number: SY-127 ・Equipped with negative ions ・USB rechargeable ・Operation confirmed 【Condition】 ・Used ・Box included ・Instruction manual included ・Minor scratches and scuffs from use. This type can be worn around the neck and is convenient for commuting and going out. Please purchase only if you understand that this is a used item and has been stored at home.