An apparatus, comprising: a rigid hood comprising walls, an opening in a front wall , and a size and shape designed to receive a patient's head within an interior space of said hood , when said patient is lying prone, at least a portion of said hood being sufficiently transparent that a patient within said hood can be viewed therein; a shroud attached to said hood , said shroud shaped and dimensioned to drape over a patient's body when said patient's head is positioned within said hood and said patient's body is extending through said opening in said front wall , said shroud creating at least a partial pressure seal around said patient's body; one or more access openings within said walls of said hood of sufficient size to permit access by a health care worker into said interior space of said hood , each of said one or more access openings covered by an elastic material having an opening therein, said elastic material opening and said elastic material permitting said health care worker to access said interior space of said hood while maintaining a pressure seal around said health care worker's body or medical equipment; a flap which bears against said opening in said elastic material and forms a pressure seal against same, said flap being movable to permit access through said elastic material opening ; a hinged door mounted proximal said opening in said front wall , said hinged door movable between a first, closed position and a second, open position, wherein said hinged door in said first closed position partially closes said opening ; and a connection for attachment of a negative pressure source to said interior space of said hood . a rigid hood comprising walls, an opening in a front wall , and a size and shape designed to receive a patient's head within an interior space of said hood , when said patient is lying prone, at least a portion of said hood being sufficiently transparent that a patient within said hood can be viewed therein; a shroud attached to said hood , said shroud shaped and dimensioned to drape over a patient's body when said patient's head is positioned within said hood and said patient's body is extending through said opening in said front wall , said shroud creating at least a partial pressure seal around said patient's body; one or more access openings within said walls of said hood of sufficient size to permit access by a health care worker into said interior space of said hood , each of said one or more access openings covered by an elastic material having an opening therein, said elastic material opening and said elastic material permitting said health care worker to access said interior space of said hood while maintaining a pressure seal around said health care worker's body or medical equipment; a flap which bears against said opening in said elastic material and forms a pressure seal against same, said flap being movable to permit access through said elastic material opening ; a hinged door mounted proximal said opening in said front wall , said hinged door movable between a first, closed position and a second, open position, wherein said hinged door in said first closed position partially closes said opening ; and a connection for attachment of a negative pressure source to said interior space of said hood . <EOS>