Blow Up is an interactive wall where breath is amplified into a field of wind, played back in sampled “breath loops.” It’s rare to say “breath” without adding “my breath.” However, breath is the aspect of ourselves that is in most continuous exchange with others. After a few minutes in a room with other people, we’ve each literally exchanged ourselves with others, inhaling parts of them and exhaling parts of us. This piece, part of a larger series on breath, shows the interdependent, public nature of breathing.