Waalaikumsalam
I want to thank you for ms. Vanny Eka for your question
I amalia ratna puspitadewi as presenter on this video, let me answer that it is more
effective to wash hands using soap, because soap can clean dirty hands while a
handsanitizer does not, but not all places provide water and soap for washing
hands therefor many people bring handsanitizers when traveling