To solve the following problem that exclusive apparatuses are respectively possessed by purposes, though the exclusive apparatus to be used by keeping internal negative pressure in order to prevent aerial infection from an infected patient or the exclusive apparatus to be used by keeping internal positive pressure in order to prevent aerial infection to the patient of easy infection, etc., is provided as an apparatus for carrying the patient in isolation by applying an aerial infection preventing means to a stretcher.

An isolation carrier capsule for the patient is fixed to a frame body 2 of the stretcher. A capsule body 5 comprises a unit to be inserted/removed, which consists of a blower 17 and a filter 14. The unit includes an exhaust unit 13 for purifying the internal air of the capsule, discharging it and keeping the negative pressure; and an air supply unit 15 for purifying outer air, supplying it into the capsule, and keeping the positive pressure. The unit is exchanged, so that one capsule is utilized by allowing the internal pressure to be negative or positive.