3-STAGE HIGH-PERFORMANCE H13 HEPA FILTER & 360° AIR INTAKE: air purifier for pets with H13 True HEPA filters can effectively removes dust, smoke, pollen, dander. This room air purifier uses advanced air spiral technology and 360-degree air inlet and outlet, which can refresh the air in spaces up to 430 sq.ft. With a 25% increase in purification efficiency, it makes for a healthier and more comfortable living environment. COMPACT SIZE & UNIVERSAL VOLTAGE, TRAVEL-FRIENDLY: This portable air purifier for car office comes with a USB Type C cable (wall plug is not included), which can be powered by a power bank, car charger and computer. Whether you are at home, at work, or in the car, you can enjoy fresh air at any time. The voltage of the small air purifier is 110-240V, so you can use it in any country. (This purifier does not contain batteries and is not rechargeable) 15-dB LOW-NOISE SLEEP MODE & AMBIENT NIGHT LIGHT &