Ultimate portability, breathe with you Ultra-small size: only palm-sized, as light as 180g, easy to fit into pockets, bags or hang on backpacks, truly realising the pocket air defender. Scene coverage: commuting underground, office cubicle, long-distance travel, confined space in the car, next to the baby pram ...... anytime, anywhere to create an exclusive clean breathing zone. Efficient purification, triple shield Primary interception layer: quickly filter hair, dust and other large particles to protect the core filter element. Medical grade HEPA filter: 99.97% filtration of PM2.5, pollen, smoke, bacteria and other 0.3m particles, breathing saviour for sensitive people. High-density activated carbon: strong adsorption of formaldehyde, TVOC, pet odour, second-hand smoke and other harmful gases, air new. Laboratory test: 5 minutes to purify 1m space, hazy days, new furniture environment effect is immediately visible. Ultra-quiet operation, do not disturb every moment Sleep mode noise is only 25dB, office, study, night use is completely quiet and senseless. Three wind speed adjustable, low endurance lasting, high-grade fast purification. Long-lasting battery life, fast charging without worry Built-in 2000mAh lithium battery, low battery life of 12 hours (daily commuting a week without worry), high-grade continuous operation of 6 hours. Type-C fast charging interface, 2 hours full charge, goodbye to power anxiety.