The overalls Tyvek® 800J manufactured by DuPont are the evolution in the type 3 overall market. Light as type-4 overalls, they still protect as much as overalls of type 3. Thanks to the innovative material, the overall has a higher breathability than other overalls of the type 3 and a high barrier effect against inorganic chemicals at low concentration and biological agents. Also suitable for the use against pandemics (incl. Ebola or similar viruses).