The air filter is ozone + anion dual mode to get more fresh air. It is small and portable, practical for home and car to bring you more healthy life.

Features:
Ozone + anion dual mode, anion for purification.
Eliminate formaldehyde and ordor by circulation.
Ergonomic design, small and portable.
Silent work, no influence for night sleeping.
Built-in 2000mAh cell, long service life.
Filter interior air of car and home.

Specifications:
Material: Anodized alloy + ABS
Color: Grey, Silver, Black (optional)
Voltage: 5V
Cell: 2000mA
Continuous Time: 4h
Item Size: 159.93 * 55.65 * 46.36mm / 6.3 * 2.19 * 1.83in
Package Weight: 250g / 8.82ounces
Package Size: 165 * 60 * 50mm / 6.5 * 2.36 * 1.97in

Packing List:
1 * Air Filter
1 * USB Cable