20 minutes ventilation / 40 minutes recirculation, speed selectable mode Relative humidity display Preferences for desired indoor relative humidity ECO Mode will automatically choose the best operating settings based on the home's current conditions LCD backlit tough screen Ventilation movement is displayed on screen No battery to replace Application Technologically advanced and feature-rich; the ECO-Touch provides contractors and homeowners with a higher level of control over indoor air quality. The MAX mode gives you the extra ventilating power you need to quickly clear the air by taking advantage of the system's powerful fans. During MAX mode, the system exchanges indoor air for outdoor air at maximum speed for a desired period of 20, 40 or 60 minutes.Website Brochures_Info\44929-413702 EcoTouch Brochure Eng.pdf