Given the danger of contamination, it is imperative we are able to detect it as well as dangerous pools of Mist. So far, treating lenses with metal mixed with our blood has allowed us to visualise some of the Mist, but a lot of research is still needed.
People with shielding Mist ability are the only thing currently saving us from Mist monsters. We have found a way to strengthen such shields with metal bracelets and circle, but not to allow other people to create them.