Envion Four Seasons 4-in-1 120V Dark Gray HEPA Air Purifier Fan Heater & Humidifier 26 H x 11 W in.Enjoy a healthy home all year round. Cut the clutter with an air purifier, heater, fan and humidifier all in one. Multiple functions can be used simultaneously providing comfort no matter what the weather brings. The True HEPA filter captures 99. 97 percent of particles, reducing dust, smoke, pollen, pet dander, allergens and mold spores. The Four Seasons has a powerful variable setting ceramic heater, 3 setting humidifier and powerful airflow fan