Hand Hygiene Recommendations | CDC- guideline of who for alcohol sanitizer ,The USP hand sanitizer toolkit external icon formulas have final concentrations of 80% ethanol or 75% isopropyl alcohol concentrations. A final concentration of 80% ethanol or 75% isopropyl alcohol recommended in the USP hand sanitizer toolkit are aligned with World Health Organization (WHO) formulations pdf icon external icon.How Much Alcohol Do You Really Need In Hand Sanitizer?Differences in a sanitizer's ingredients is one factor that might explain the discrepancy between results. Based on the active agents, there are two main types of sanitizer: alcohol-based hand ...