The most common ingredients in household cleaning products include alkalies, acids, detergents, abrasives, sanitizers, and spirit solvents.
Abrasives. Abrasives are materials that wear off dirt by rubbing. ...
Acids. ...
Alkalies. ...
Bleaches. ...
Detergents. ...
Sanitizers. ...
Spirit Solvents. ...
Making a Cleaner.
It usually takes 6 to 8 weeks
The answer is letter A. Make hand hygiene more effective. In the hospitals, staffs and employees know which product is more effective since they have laboratories where the can test the components and ingredients. Additionally, hospitals won't advised their patients to use a certain product if they haven't tested it by themselves.