InSight Air Purifier delivers powerful, HEPA filtration and features a cutting-edge design that displays setting information from a distance. Air-quality indicator is powered by a VOC sensor that constantly monitors the air quality while providing real-time, easy-to-understand feedback with the Insight display panel. Automatic cleaning mode uses the air-quality reading to automatically adjust to the optimal cleaning level. Purifier features a touch-screen control panel, auto-off timer and filter check/reset lights. Color-coded feedback illuminates which of the four cleaning levels you select. Air purifier uses HEPA certified filters to help capture up to 99.97 percent of microscopic allergens and particles such as dust, smoke, pollen, pet dander and mold spores in extra-large rooms (500 square feet). Carbon-activated pre-filter helps trap larger particles and reduce odors and VOCs. Air purifier works with Honeywell A and A Plus Pre-Filters and True HEPA G Replacement Filters.