Answer:
Cleaning refers primarily to the removal of visible dirt or particles; however, the cleaning process and some products used for cleaning also result in disinfection. Cleaning is normally undertaken on a routine and frequent basis.
directly inhaled respiratory droplets, suspended airborne particles, or both;
direct contact with faecal matter, blood or other body fluids;
contact with respiratory secretions, faecal matter or body fluids deposited on surfaces or, for maintenance crews, entrained in ventilation systems.
