An built-in light-weight sensor reads the light inside the space and adjusts the monitor brightness quickly. Once the lights within the home are turned off, the screen dims and then, after a several seconds, goes dim. No shiny display screen to disturb sleep. IntelligentAir is a collection of ResMed systems http://simonatjfr.theobloggers.com/4805095/top-guidelines-of-resmed-cpap-machine-dubai