Vornado Evap2 Whole Room Evaporative Humidifier Humidifies up to 600 sq. ft. through the use of vortex circulation Electronic humidistat for automatic humidity control and 3 fan settings (low, high, auto) Push-button controls with LED lights for easy confirmation of settings 1 gallon tank capacity and up to 2 gallon output every 24 hours Backed by a 5-year limited warranty NOTE: User manual is attached in this page. Refer these pages for the following: Page 7  Getting Started - Page 11  How to Use - Page 16  Troubleshooting