#$%^&*AU2016269563B220180315.pdf#####19 ABSTRACT A steam steriliser (1) for medical instruments comprising a feeding system (30) suitable to feed a sterilisation chamber (20) and comprising at least one main tank (31) for containing a sterilisation fluid (1a); an evacuation system (40) suitable to evacuate a discharge fluid (1b) from the sterilisation chamber (20); and a purification system (50) suitable to draw one of the fluids (1 a, 1 b) out of one of the systems (30, 40) and to introduce it into the main tank (31), and comprising cleaning means (51) suitable to filter said fluid.co LC coo CooL LO N