【Highly efficient cleaning】HEPA and activated carbon filters purify 99.97% of dust, pollen, smoke and pet odors. 【Portable and compact】Cleaning solution Perfect space saver for small rooms and cars, e.g. in bedrooms, cars, entryways or hallways, studios, offices, kitchens, pet rooms, etc. 【Easy to use】USB power cord, portable. Power can be supplied via adapter socket (USB interface), USB socket, laptop, mobile power supply, car USB socket, etc. 【Extremely quiet】Low power consumption, quiet operation without noise. The operating noise is barely audible and will not disturb your rest and work. 【Dream night light】Gentle and weak UV sterilization, safer. The ultraviolet light is not projected outward and does not affect human health. At the same time, the soft light can be used as a dream night light on a quiet night.