Abstract: A portable conveying device for patients who are heavily soiled or chemically, biologically or radioactively contaminated. The device comprises a mechanically flexible rescue sheet, wherein said rescue sheet has a top face that defines a lying surface for receiving a patient in a lying position and an underside opposite the top face. The device further comprises a mechanically flexible underlay sheet that is chemically resistant and impermeable to liquid. The underlay sheet at least partially covers the underside of the rescue sheet and is releasably connected thereto, such that the underlay sheet may in its entirety be disconnected from the rescue sheet and a patient may be carried away with the rescue sheet only.