With so many different models of air purifiers on the market today, choosing one may seem like a daunting task for most consumers. Luckily, the Alen Corporation has created a superior and comprehensive air cleaning product that effectively purifies the air you breathe. The A375UV offers a fusion of five different air purification technologies into one: a pre-filter, HEPA filter, enhanced carbon filter, and built-in ionizer which eradicate 99.97% of smoke, pollen, dust, and animal dander. Best of all, two UV lamps help destroy bacteria, viruses, and other microorganisms. Unlike competing air purifiers in its class, the Alen A375UV Ultra delivers cutting-edge air purification technology into a simple to use and easy to maintain unit. Plus, this combo kit includes a replacement filter.