Hand washing - Wikipedia- global hand wash ,Hand washing (or handwashing), also known as hand hygiene, is the act of cleaning one's hands with soap (or equivalent materials) and water to remove viruses/ bacteria/germs/ microorganisms, dirt, grease, or other harmful and unwanted substances stuck to the hands.Drying of the washed hands is part of the process as wet and moist hands are more easily recontaminated.Global Handwashing Day | Handwashing | CDCEstablished by the Global Handwashing Partnership in 2008, Global Handwashing Day is celebrated each year on October 15 as a way to increase awareness and understanding of the benefits of handwashing with soap. Global Handwashing Day is an opportunity to get involved in creative ways to encourage people to wash their hands with soap at critical times.