*Built in DC fan with quiet engineering design *Imported UVA LED, no need to replace and long life up to 20k hours *Specially equipped with 4 air purifying elements and all are Removable 1. A fine washable pre-filter can capture big dust, pollen and particles 2. A replacable activate Carbon filter can removeVOCs and odor 3. A Cleanable PCO filter remove airborne chemicals, bacteria and germs 4. Ionizer can generate millions ions to clean and re-energize the air *LED indicating timer with 4 timeR settings *On/ off switch, 3-speeds air flow selection with LED indicators *Versatile usage at home, bedroom, office, car and other personal areas *Auto-shut off safety device in the door for easy repairs. *Compact and cute Frog shape design *Easy cleaning and maintenance *Low power consumption, less than 11 watts. Unit Size:310x230x130mm.