Ducting could be the community of sealed adaptable cylindrical tubes, connecting the air conditioning device to every room vent. The ducting network also recirculates air to the device through a return air panel, getting rid of dust, dirt and airborne pollens. The choice with the working fluids (refrigerants) has a https://docs.google.com/spreadsheets/d/1sFkX-195bzbspltn6kI7pJAwHC_IWJIWy0giWMghe84