Air Purifier by Guardian Technologies. The GermGuardian Elite 3-in-1 Pet Pure True HEPA air purifier includes a filter that traps 99.97% of allergens such as a pet dander, dust mist and pollen. More than a simple filter, UV-C light kills germs, while the carbon filter traps odors The Pet Pure air purifier filter incorporates an antimicrobial agent that prevents mold growth and proliferation of odor, causing bacteria on its surface. Easy to use electronic controls include a UV-C function and a filter maintenance indicator. You can select from 3 speed settings, including an ultra speed at low revs.