MAC in Montreal, Art by Rafael Lozano-Hemmer

Vicious Circle Breathing. This exhibit comes with a warning "enter at your own risk" The glass box is hermetically sealed the breath of previous participants are kept circulating by the action of the bellows which inflate and deflate the paper bags around 10,000 times a day (approximately the normal respiratory frequency for an adult at rest). I had a cold at the time so thought it better not to enter the glass box as you are locked in for a certain amount of time.