USB Portable Negative Ion Air Purifier – Blue, 5 million ions/cm², built-in 500 mAh battery

🌬️ General Description: A portable USB air purifier with negative ions, ideal for everyday use. Effectively eliminates secondhand smoke, dust, and fine particles (PM2.5) within a one-meter radius. Perfect for subways, offices, travel, or confined spaces. Lightweight, silent (<10 dB), and ready to use right out of the box. 📐 Technical Specifications: Dimensions: 7.2 × 2.5 × 2.5 cm; Materials: Aluminum alloy + eco-friendly silica gel; Power: ≤ 1 W – Input: DC 5 V (USB); Negative ions: 5 to 8 million/cm²; Built-in battery: 500 mAh lithium (up to 10 hours of battery life); Charging: USB cable included (micro-USB connector); Available colors: Blue, gold, purple; Package contents: 1 purifier (battery included), 1 USB cable, 1 instruction manual in French. 🔧 Installation: No installation required. Simply connect it via USB to a computer, power bank, or wall adapter (not included). Turn it on with a simple press of the button. ⚡ Use it anywhere: around your neck with the included cord (excluding Australia), on your desk, or in your bag. It operates silently, without disturbing you. Ideal for enjoying fresher, healthier air, even on the go. ℹ️ Other information: 100% brand new. Measurement accuracy: ±1 cm. Color may vary slightly depending on your screen. Designed for intuitive, quick, and effortless everyday use.