An EPA-registered bactericidal, fungicidal & virucidal chemical is a

• A. Disinfectant
• B. Sanitizer
• C. Cleaner
• D. Sterilant

Answer: (A)

Disinfectant is the right choice because an EPA-registered product that is bactericidal, fungicidal, and virucidal is intended to kill a broad spectrum of microorganisms on inanimate surfaces. Disinfectants are labeled with claims that they kill bacteria, fungi, and viruses, making them suitable for reducing or eliminating pathogens on surfaces.

Sanitizers mainly aim to reduce microbial counts to safe levels, which may not include virucidal or fungicidal claims. Cleaners focus on removing soil and grime and do not necessarily kill microbes. Sterilants are designed to destroy all microorganisms, including spores, and are used for critical sterilization of equipment, not typical surface disinfection.