Which of the following is a documented drawback of phenolic disinfectants?

• A. They can damage plastic and rubber
• B. They are non-corrosive and safe for every metal
• C. They have no odor
• D. They require no ventilation

Answer: (A)

Phenolic disinfectants are very strong antiseptics, but a key limitation is that they can degrade plastic and rubber components. This material compatibility issue means gaskets, hoses, trays, and other plastic or rubber parts can become weakened, cracked, or swollen with use. That makes this choice the best answer because it directly reflects a documented drawback in real-world use and product safety guidance.

These disinfectants are not universally non-corrosive for all metals, and they do have a noticeable odor and fumes that typically require ventilation. So statements claiming they’re safe for every metal, have no odor, or require no ventilation don’t align with their known characteristics.