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Pin on Hand sanitizer dispenser- de cool hand sanitizer gel ,Hand Washing Machine Hand Sanitizer Dispenser Arduino Science And Technology Diy And Crafts Alcohol Make It Yourself Youtube How To Make More information ... Saved by Patricia Sweat StrotherHand sanitizer - WikipediaHand sanitizer is a liquid, gel, or foam generally used to decrease infectious agents on the hands. In most settings, hand washing with soap and water is generally preferred. Hand sanitizer is less effective at killing certain kinds of germs, such as norovirus and Clostridium difficile and unlike soap and water, it cannot remove harmful chemicals.