Features: Adjustable Two Gears: High and low modes allow customizable air purification for optimal comfort. Long-Lasting Battery: Built-in 700mAh rechargeable battery provides 30-60 hours of continuous use. Negative Ion Technology: Electrolysis-generated ions form a microscopic barrier to combat pollen, dust, and smoke. Compact & Wearable: Lightweight design can be worn around the neck or placed in cars, offices, subways, or bedrooms. Family-Friendly Use: Safe and convenient for children, students, and the elderly to support overall respiratory health. Specifications: Color: Black Material: ABS+PC Battery Capacity: 700mAh .
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