I was wondering if there is any significant difference between:
Sanitizing: to make something completely clean and free from bacteria.
Disinfecting: to clean something using chemicals that kill bacteria and other very small living things that cause disease.
For instance, is there any considerable nuance between the sentences in the following pairs?
a.1. Sanitize your hands.
a.2. Disinfect your hands.
b.1. Sanitize the table surface.
b.2. Disinfect the table surface.
Looking at this video, they mean the same thing and perhaps can be used interchangeably when they are used to imply bacteria removal and apparently, the only nuance is the removal percentage which is 99.9 in sanitizing and 99.999 in disinfecting. However, I guess ordinary people do not take this super slight nuance in everyday speech unless they are technical experts. Please let me know about it.