Compact and portable, purify wherever you go The size of the palm of your hand, the weight is as light as 200g, can be easily put into the backpack, desk drawer or car cup holder, to realise wherever you go, purify wherever you go. Suitable for commuting, travelling, office, car and other small confined spaces, quickly improve local air quality. Efficient purification, triple filtration Primary filter: Intercepts hair, dust and other large particles, and extends the life of the core filter element. HEPA filter: filter PM2.5, pollen, allergens and other small particles, purification rate 99.97% (0.3m level). Activated carbon layer: adsorb formaldehyde, TVOC and other harmful gases and odours, such as second-hand smoke, food residue smell. Case description: Equivalent to a miniature air shield, 10 minutes to purify 1m space, hazy days or newly renovated environment is particularly suitable. Silent design, quiet guarding Running noise 30dB, no interference at night or library and other quiet scenes. Sleep mode automatically reduces the wind speed, taking both purification and quietness into account. Intelligent control, long life One key switch + three wind speed adjustment, simple operation, the elderly and children can easily use. Built-in high-capacity lithium battery, fully charged state can run continuously for 8-12 hours, USB-C fast charging 2 hours full.