Abstract: Normobaric infection control apparatus and method utilizing a portable, inflatable oxygen treatment type hood having an inlet port to which an inhalation gas conduit is connected and an outlet port to which an exhaled gas conduit is connected, and in which, in a first structural embodiment and method, provides normobaric infection control of a user's exhalations by means of exhaled gas filter means disposed in the exhaled gas conduit, and which, in a second structural embodiment and method, provides normobaric infection control of the inhalations of a user by means of inhalation gas filter means disposed in the inhalation gas conduit.