What percentage of ethyl alcohol is generally deemed effective for sanitization in a salon?

The percentage of ethyl alcohol deemed effective for sanitization, particularly in a salon setting, is commonly understood to be around 60% to 80%. This concentration is effective for killing most bacteria, fungi, and viruses. Ethyl alcohol functions effectively as a disinfectant by denaturing proteins and disrupting cell membranes of microorganisms.

When the concentration of alcohol is 100%, it actually becomes less effective as a germicidal agent because it evaporates too quickly to be effective in killing pathogens. Lower concentrations, though, are able to remain in contact with the surface or skin long enough to kill microorganisms effectively. Therefore, opting for a concentration in the range of 60% to 80% provides the best balance for effective sanitization.

In the context of this question, the choice of 90% does not fall within the recommended range for effective sanitization and is therefore not the best answer. The general consensus among health authorities supports the 60% to 80% range as optimal for sanitization rather than anything above that.