These Claritin CAP531B-TU air purifiers contain a permanent True HEPA filter that removes up to 99.97% of airborne allergens and pollutants as small as 0.3 microns from air passing through the filter. They were designed with the allergy sufferer in mind, and enable treatment the natural way. Features include a 12-hour timer, filter maintenance button, optional ionizer, and five settings. Today only, pay $79.99 for either the black or white model.