Ducting may be the network of sealed flexible cylindrical tubes, connecting the air conditioning device to every space vent. The ducting network also recirculates air towards the device via a return air panel, eradicating dust, Dust and airborne pollens. The transportable units attract indoor air and expel it outdoor by https://docs.google.com/spreadsheets/d/14Zqd0FEGkdjJlcohp4SFWeSZ9M4AIBFQpIDlHrjqztI