Hyperventilation is a functioning sculpture based on a found object that divides air into warm and cold, exposing the systems through which air circulates through bodies, buildings and the planet. The work engages with the paradox of artificial cooling: the more we stabilise interior climates, the more unstable and uninhabitable the exterior becomes. The sculpture is presented here as a cardboard model, while the original is installed at the Lucky Garage, Mutuogenesis’ base in Berlin Neukölln. Removed from its original context, the device becomes a breathing sculpture that continuously exchanges air and temperature with its surroundings as long as it has power, functioning in the Lucky Garage as a DIY device to mediate climate within the space.