▁is ▁fully ▁protected . ▁Which ▁level ▁of ▁protection ▁is ▁appropriate ▁should ▁be ▁determined ▁by ▁a ▁risk ▁assess ment ▁of ▁the ▁door . ▁ ▁There ▁is ▁also ▁handle - side ▁door ▁protection , ▁which ▁prevents ▁the ▁door ▁from ▁sl am ming ▁shut ▁on ▁the ▁frame , ▁which ▁can ▁cause ▁injury ▁to ▁fingers / hand s . ▁ ▁Saf ety ▁doors ▁ ▁A ▁safety ▁door ▁prevents ▁finger ▁inj uries ▁near ▁the ▁h ing es ▁without ▁the ▁use ▁of ▁door ▁gu ards . ▁R ather ▁than ▁cover ▁the ▁danger ▁area , ▁the ▁approach ▁is ▁to ▁change ▁the ▁shape ▁of ▁the ▁door ▁so ▁that ▁an ▁accessible ▁gap ▁does ▁not ▁form ▁in ▁the ▁first ▁place . ▁This ▁is ▁achieved ▁by ▁adding ▁a ▁perfectly ▁circular ▁(" b ull - n ose " ▁sh aped ) ▁extension ▁to ▁the ▁door , ▁which ▁moves ▁in ▁and ▁out ▁of ▁a ▁cav ity ▁as ▁the ▁door ▁opens ▁and ▁clos es . ▁This ▁prevents ▁any ▁part ▁of ▁a ▁hand ▁being ▁cr ushed ▁near ▁the ▁h ing es ▁– ▁either ▁inside ▁or ▁outside . ▁These ▁doors ▁have ▁an ▁operating ▁range ▁of ▁slightly ▁over ▁ 9 0 ▁degrees , ▁so ▁their ▁use ▁is ▁limited ▁to ▁where ▁they ▁come ▁into ▁contact ▁with ▁a ▁side ▁wall ▁when ▁fully ▁open ▁( or ▁where ▁they ▁can ▁be ▁prevent ed ▁from ▁opening ▁too ▁far ▁by ▁a ▁door stop ). ▁ ▁G lass ▁doors ▁ ▁G lass ▁doors ▁pose ▁the ▁risk ▁of ▁un intent ional ▁collision ▁if ▁a ▁person ▁bel ieves ▁the ▁door ▁to ▁be ▁open ▁when ▁it ▁is ▁closed , ▁or