This Portable Air Purifier has a Negative Ion Generator which sterilizes and cleans the air continuously. It has a Multi-layer Filtration and Purification Technology that efficiently removes and isolates dust and common household allergens from the air. It has Built-in Three Working Gears. First Gear, Low Wind Speed + Indication; Second Gear, High Wind Speed + Indication; and Third Gear, High Wind Speed + Negative Ion + Indication. This Portable Air Purifier has a compact size that makes it perfect for any small area such as the Desktop, Kitchen, Pet Room and Bedroom. Perfectly suited for pet owners, allergies or asthma, babies, ren, the elderly, or anyone who wants to improve their indoor air quality. !!! This Portable Air Purifier Has a Full !!! Features: Efficient and Fast Purification of Fresh Air Anti Oxidation ABS Fuselage 360° Large Area Purification Efficient Bacteria Removal Remove Smoke Multi-layer Filtration and Purification Technology Nanofiltration to remove Allergens Ten million Negative ions Purification Blue Working Light, Low Noise, One Click Operation LED Indicator Light to show different conditions Perfect gift for family, pets, friends and colleagues Applications: This Air Purifier is perfectly suited for pet owners, allergies or asthma, babies, ren, the elderly, or anyone who wants to improve their indoor air quality. Specification: Product: Air Purifier Material: ABS Working Voltage: DC 5V Blue light: Yes Rated Power: 18W Speed Gears: 3 Gear Applicable Area: 50-120 Noise: 34 dB Power Mode: USB Colour: White Size: 12.5 × 12.5 × 24.5 cm Weight: 600g Package Include: 1 x Air Purifier 1 x USB Cable 1 x User Manual 1 x Retail Box