When cleaning with probiotics there are some very experienced forces deployed: the good bacteria. These good bacteria have been working effectively long before there were humans. Because they themselves are microorganisms, they know exactly how these function and how resistance, the disinfection paradox and stubborn biofilms can be prevented. By not destroying the (harmful) community, but by only occupying the empty spaces, bad bacteria will be prevented to get the upper hand and cause damage to humans, animals and nature. What happens next is revolutionary. The microorganisms give out the signal to stop expanding. When you continue to clean with probiotics the original occupation will continuously be forced to a lower activity. Eventually the original inhabitants will die of old age and their space will be occupied with the good probiotic newcomers. Because of the self-regulating effect of nature you can achieve, and sustain, a healthy microflora by using probiotics.