Feature: 1. Remove formaldehyde, PM2.5, second-hand smoke, odor, etc. 2. Effectively purify air, enjoy fresh air and healthy environment. 3. Various purification means, equipped with high-efficiency filter mesh, formaldehyde particals removal mesh and negative ion generator. 4. The filter core is replaceable to keep high working performance. 5. Small size, applicable for home and car. Specification: The air purifier with high-efficiency filter mesh and negative ion generator can effectively remove formaldehyde, PM2.5, second-hand smoke, odor, etc. It can be used at home or car to make you enjoy fresh air and give you a healthy environment. Features: Remove formaldehyde, PM2.5, second-hand smoke, odor, etc. Effectively purify air, enjoy fresh air and healthy environment. Various purification means, equipped with high-efficiency filter mesh, formaldehyde particals removal mesh and negative ion generator. The filter core is replaceable to keep high working performance. Small size, applicable for home and car. Specifications: Material: ABS Color: White Rated Voltage: 5V Max. Power: 2W Negative Ion Concentration: 800W Power Supply: USB Applicable Area: Under 10 ㎡ Air Volume: 50 cubic meters per hour Item Size: 132 * 66 * 66mm / 5.2 * 2.6 * 2.6in Package Weight: 170g / 6ounces Package Size: 145 * 70 * 70mm / 5.71 * 2.76 * 2.76in Packing List: 1 * Air Purifier 1 * USB Cable 1 * User Manual Package List: 1 * Air Purifier 1 * USB Cable 1 * User Manual