Which of the following is NOT a factor that affects the effectiveness of a disinfectant?
Concentration of the disinfectant
Contact time with the surface or object being disinfected
Color of the disinfectant
Odour of the disinfectant
Explanation: The concentration of the disinfectant and the contact time with the surface or object being disinfected are both important factors that affect the effectiveness of a disinfectant.
Incorrect options
1) Concentration of the disinfectant: The concentration of the disinfectant affects its effectiveness. Higher concentrations may be more effective, but can also be more toxic.
2) Contact time with the surface or object being disinfected: The length of time that the disinfectant remains in contact with the surface or object being disinfected is important. Longer contact times may be necessary to effectively kill all microorganisms.
4) Odour of the disinfectant: The odour of the disinfectant does not affect its effectiveness.