... with HEPA filter, UV light and photo catalytic filter, which has very good performance on kill germ and bacterial, eliminates particles, dust, pollen, smoke ... , fume, mildew, etc.Model# HMA-300/RHSpecification:Negative ion + UV light + Tio2 photo catalytic filter + HEPA ... and virusProduce natural air like outdoorsFeatures and Advantages:With solid cherry wooden box, more durable and ...