▁A ▁pair ▁of ▁cover alls ▁or ▁other ▁work - type ▁gar ment ▁along ▁with ▁chemical - res istant ▁foot we ar ▁with ▁steel ▁to es ▁and ▁sh anks ▁are ▁all ▁that ▁is ▁required ▁to ▁qual ify ▁as ▁Level ▁D ▁protection . ▁Most ▁fire fig h ter ▁turn out ▁g ear ▁is ▁considered ▁to ▁be ▁Level ▁D . ▁ ▁In ▁Europe ▁ ▁Most ▁su its ▁used ▁in ▁Europe ▁are ▁covered ▁by ▁a ▁set ▁EU ▁Norm s , ▁and ▁divided ▁into ▁a ▁total ▁of ▁six ▁types ▁( level s ) ▁of ▁protection : ▁▁ ▁Type ▁ 1 : ▁Prote ct s ▁against ▁liquid ▁and ▁g ase ous ▁chemical s . ▁Gas ▁tight . ▁( EN ▁ 9 4 3 ▁part ▁ 1 ). ▁More ▁or ▁less ▁equivalent ▁to ▁US ▁level ▁A . ▁ ▁Type ▁ 2 : ▁Prote ct s ▁against ▁liquid ▁and ▁g ase ous ▁chemical s . ▁Non ▁gas ▁tight . ▁( EN ▁ 9 4 3 ▁part ▁ 1 ). ▁More ▁or ▁less ▁equivalent ▁to ▁US ▁level ▁B . 1 ▁ ▁Type ▁ 3 : ▁Prote ct s ▁against ▁liquid ▁chemical s ▁for ▁a ▁limited ▁period . ▁Li qu id ▁jet ▁tight . ▁( EN ▁ 1 4 6 0 5 ) ▁ ▁Type ▁ 4 : ▁Prote ct s ▁against ▁liquid ▁chemical s ▁for ▁a ▁limited ▁period . ▁Li qu id ▁s atur ation ▁tight . ▁( EN ▁ 1 4 6 0 5 ). ▁More ▁or ▁less ▁equivalent ▁to ▁US ▁level ▁C . ▁ ▁Type ▁ 5 : ▁Prote ct