Everyone in your operation needs to know about bloodborne pathogens.  OSHA defines bloodborne pathogens as, "Infectious microorganisms in human blood that can cause disease in humans."  This generally refers to Hepatitis B and C, HIV, and AIDS, but there are more that can be considered.  These pathogens are a very real and dangerous risk when cleaning.  Staff members need to know about these risks and how to protect themselves.

Universal Precautions is a method of reducing risks.  This method clarifies the need to protect yourself with PPE and assume that every person's blood (and other bodily fluids with traces of blood) potentially carries bloodborne pathogens.  Someone may appear totally healthy but be a carrier.  Protecting yourself and other staff members in your operation by assuming PPE is needed, rather than taking risks with PPE use.

While engineering controls that make things like needle sticks less common in our modern day, it is still possible to encounter sharps.  Even cleaning an apartment or office building, a sharp item with BBP exposure could be in the folds of a couch or down in a cushioned chair.  You never know when something could be encountered, so protecting yourself with PPE at all times when cleaning is the best approach.