The invention concerns a hood (4, 4', 4", 4"') for a cleanroom gown (1), the hood comprising a base body (8) defining an outside (16) and an inside (12) adapted to receive a head of an operator (10), the base body having a visor opening (18) having a lower border (22) and an upper border (28) and two lateral borders (24, 26), wherein the hood includes a visor (30) fixed in the visor opening (18), wherein the visor comprises a visor circumference (52) with an upper border (34) and a lower border (32), the lower border (32) of the visor (30) comprising a nose cut-out (40) or a nose bulge provided for a nose of the operator (10), characterized in that the hood further comprises at least one sealing device (66, 67, 68) adapted to seal a space between at least one of the borders (22, 24, 26, 28) of the visor opening (18) and a portion of the face of the operator (10) and to position the visor (30) on the operator (10).
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