One hell of a new procedure?

Not a lot of people know about my other job which is not the same as my day job. It’s a professional outfit but they have some pretty strange rules. If you worked in a job where you were handling dangerous chemicals, you would be expected to wear protected clothing and to wash your hands. My other job is music related. I went in last night and they had a new procedure but I really don’t understand how or why they’re asking us to do this: