AREP Vietnam is considered one of the countries most vulnerable to the effects of climate change, with heat waves being one of the most cyclic issues. Modern AC solutions have a heavy environmental cost by requiring a formidable amount of energy, triggering heavy smog pollution, and by emitting ozone depleting substances. Adiabatic cooling is a sustainable technique that does not require any refrigerant gas. It is based on a simple and natural principle; a cooling effect generated by evaporating water. By crossing the principle of an adiabatic cooling device with Vietnam’s know-how in arts and craft, wrapped into a naturally resistant hyperboloid structure, we propose a low-tech alternative solution to cool public spaces with only hot air and water, without using energy nor any refrigerant gas.