Final answer:
Storing disinfectants in unmarked containers is the incorrect precaution when working with disinfectants; one should always wear protective gear, avoid inhaling fumes, and ensure proper ventilation.
Step-by-step explanation:
The question revolves around the appropriate precautions to take when working with disinfectants. Among the options given, the one precaution that should not be followed is "Storing disinfectants in unmarked containers". It is crucial to label and store chemicals properly for safety reasons.
Protective clothing, gloves, and eyewear provide a barrier to protect against splashes and contact with harmful substances. Avoiding inhalation of fumes is also essential, and this is why working in a well-ventilated area is recommended to minimize the inhalation of toxic vapors.
It is important to note the historical basis for comparing disinfectant effectiveness to phenol, as well as the specific usage of antiseptics on tissues for microbial control to prevent infection.