PowerPure AP03 by Aerus, 2-in-1 HEPA Air Purifier and Ultrasonic Humidifier Covers up to 400 Square Feet; Features a 1-Year Manufacturer Warranty Money Saving 2-in-1 HEPA Air Purifier and Ultrasonic Humidifier That Operate Separately or Simultaneously Features a True HEPA filter and a Robust Carbon Filter for Cleaner, Healthier Air Air Quality Sensor and Display Informs You When Your Air Quality has Changed Soft Touch Control Panel Features 2 Fan Speeds, Auto Mode, Timer and Filter Change Indicator