Medical waste is not everywhere in the world the same. What is the acids content of the medical waste in your country? Mainly the amount of Chlorine in the waste will decide a 1 stage or a 2 stage system. In Europe pharmaceutical companies have almost no Chlorine any more in the packaging. So the Chlorine will be about 0,5%. In most of Asian countries, the Chlorine is about 2% in the mass of the medical waste. A single stage can handle European medical waste, with intervention of the operator, which we discuss here.