You could enter the door without taking off your shoes,Just stepping slightly on the machine, a shoe cover will be tied on your foot, and you could avoid & solve such things as following:
1. No need to bend over in order to change shoes or wear shoe covers.
2. Eliminate the hidden trouble of dermatophytosis spreading.
3.Avoid the unpleasant smell or embarrassment brought by holes on socks.
4. Save the trouble of having no enough slippers or cleaning floor afterwards.
It is largely used in hospital, factory, office, laboratory, home etc.