All medical advice is that you have to wash your hands by 20-30 seconds with soap to effectively disinfect them. Reminding your students of this fact is a great way to keep your students healthy in the classroom. It can be used in concert with a number of other classroom displays, presentations, and activities available on Teach This.
The experiment that is a part of this presentation could be cut by deleting those slides.
The experiment in this presentation is very easy to do in your classroom and well worth your time. To extend this learning, you could have student watch a video about how surgeons scrub their hands before performing surgery.