Opening a window is the biggest waste of energy in every modern home. That was the reason why physicist Noor van Andel and architect Jon Kristinsson invented the Breathing Window, which is now Fresh-r. To let fresh air in, while keeping the temperature the same, can reduce the need to heat or cool homes to nearly zero.
Fresh-r is Wifi-connected, for insight and control of temperature, humidity, CO2 and cubic meters fresh air ventilated. To learn from. And for reassurance and safety.