Hand sanitizers containing 70% alcohol remove 99.97% (reduction of 3.5, log equivalent to a reduction of 35 decibels) of bacteria present on the hands 30 seconds after application and 99.99% to 99.999% (4-5 log reduction) of bacteria on hands 1 minute after application. Hand sanitizers are more effective against bacteria and less effective against some viruses.
Vieuzi vilivyo na alkoholi kwa asilimia 70% huuwa 99.97% (mapunguzo ya logi ya 3.5, sawa na mapunguzo ya desibeli 35) ya bakteria sekunde 30 baada ya kuvitumia na 99.99% hadi 99.999% (mapunguzo ya logi 4 hadi 5) ya bakteria kweneye mikono dakika 1 baada ya kuvitumia.Vieuzi vya mikono vinafaa zaidi dhidi ya bakteria na havifai sana dhidi ya virusi fulani.