According to the video, what are 3 reasons aseptic technique is necessary?

However there is no video, but I will give you an insight of why asepsis is necessary:
Aseptic conditions prevent the chances of contamination, be it surgical procedures, equipment, or food production or processing
It is a sterile technique, by which hospital-borne infections can be minimized.
The main aim of asepsis is to eliminate any chances of infection.