Which of the following is not considered acceptable for use as a surface disinfectant in the dental office?

glutaraldehydes
iodophor
chlorine-based products
phenolics

glutaraldehydes

Rationale: glutaraldehydes – This product is designed to be used as a cold sterilizer, with instruments being immersed for at least 6 to 8 hours or more for effectiveness. Used as a surface disinfectant, it can cause nose and eye irritation and may cause breathing difficulties in some people.