Hello, in fact, many bacteria, germs and viruses are capable of surviving short-term boiling. This is why modern sterilization methods usually rely on chemical destruction of germs and viruses. The eternal question-does bleach kill mildew fade into the background. Sure, using a steam cleaner will kill a certain proportion of germs during steam treatment, but for the most part these are germs that are harmless to humans. Therefore, in order to kill all germs, it is recommended to mix water with chemicals in the steam generator tank.