Vacuums suck, blowers exhale. This is the corporeal economy at work in David Attwood’s Dust Blaster. The hot-box space at Savage Garden is crowded with only three people on a summer’s afternoon. Savage Garden occupies the backyard of a share house in Carlton North, constructed from offcut materials from MUMA. In the white, sunlit space, there is an irritating whir coming from the piece on the wall opposite the entrance.