One must have through knowledge and proper training for all staff in the cleaning industries for their safety and providing quality services. All staff must be equip with personal protective equipment and precaution should always be taken at all times.
Personal protective equipment such as gloves, face mask and safety glasses should be worn at all time. This is to protect each staff from coming into contact with blood borne pathogens. 

Blood pathogens consist of but not limited to: Hepatitis B virus and HIV.  Blood pathogen could cause serious illness or even death. When cleaning one should always take precious and follow OSHA standard protective practices.