Medical gowns are hospital gowns worn by medical professionals as personal protective equipment (PPE) in order to provide a barrier between patient and professional. Whereas patient gowns are flimsy often with exposed backs and arms, PPE gowns as seen below in the cardiac surgeon photograph cover most of the exposed skin surfaces of the professional medics. In several countries, PPE gowns for use in the coronavirus pandemic became in appearance more like cleanroom suits as knowledge of the best practices filtered up through the national bureaucracies. For example, the European norm-setting bodies CEN and CENELEC on 30 March 2020 in collaboration with the European Commissioner for the Internal Market made freely-available the relevant standards documents in order "to tackle the severe shortage of protective masks, gloves and other products currently faced by many European countries. Providing free access to the standards will facilitate the work of the many companies wishing to reconvert their production lines in order to manufacture the equipment that is so urgentl y needed. History The concept of PPE in regards to medical professionals was seen as early as the 17th century Plague doctor's outfit . During the Ebola crisis of 2014, the WHO published a rapid advice guideline on PPE coveralls. Their findings are set out in a table entitled "Necessary pe rsonal protection equipment": FFP2 facial mask or (in case of maneuvers at high risk of gener ating aerosolized particles:) FFP3 facial mask Disposable long sleeve waterproof coats, gowns, or Tyvek suits Disposable double pair of nitrile gloves Protective goggles or visors Disposable head caps Disposable long shoe covers Alcoholic hand hygiene solution References "Sequence for Putting On Personal Protective Equipment (PPE)" ( PDF). CDC . Archived (PDF) from the original on 5 March 2020. Retrieved 8 March 2020.