A hygienist on the outside of the hot zone tells a health worker to put his goggles in a bucket of chlorine. Before anyone can exit the hot zone, they must go through an elaborate undressing and decontamination process. Each person is directed by a hygienist on the other side who walks them through the whole process and watches them to make sure they don't do anything wrong. All outside materials are thrown away and reusable items are doused in chlorine for decontamination. At ELWA3 - the Ebola Case Management Center run by MSF.