Masters research on how oyster mushrooms can stop human faeces smelling. The research focused on container based sanitation systems using urine diversion dry toilets. By adding Oyster Mushroom mycelium to the faeces container it is possible to control the smell indefinitely. The result of this masters was PooPac, a bioactive paper bag (containing oyster mushroom mycelium) that suppresses the toilet smell. The biodegradable PooPac is sealed for transport, and directly composted, removing all contact with faeces.