Delos is what’s known as a “wellness real estate” brand. Founded in New York in 2012, it aims to make homes healthier places to live by installing a system that monitors and controls a property’s air and water quality and lighting.

Delos introduced the technology, called Darwin Home Wellness Intelligence (Darwin), in Australia last fall.

Darwin is operated through a Wi-Fi-enabled tablet that resembles an iPad and displays metrics on conditions across the home. Properties with the system are constructed with air quality sensors and filters that detect and remove impurities like pollution and smoke. They also have water purifiers that get rid of chlorine, heavy metals and other particles from tap water.

Darwin’s lighting component is intended to mimic natural light patterns. Properties have blackout shades that open to natural light in the morning (residents can set a designated time), and in the evening the shades automatically close, and lights in the home gradually dim to simulate nightfall outside.