Hawaii Beauty Operator Practice Exam

Metal implements should be disinfected with a hospital grade solution because it is specifically designed to kill harmful bacteria, viruses, and other microorganisms that may be present on medical instruments. Options B and C are not strong enough to effectively kill these harmful agents. Bleach solution may be too harsh and can cause corrosion on the metal implements. Therefore, a hospital grade solution is the most effective and safest option for disinfecting metal implements.