Abstract: The invention relates to a cleanroom and a method for rapidly providing a cleanroom, having a first shell wall, which separates a first space that is indirectly or directly adjacent to a floor area, having a flexibly foldable shell wall directly facing the first space, which is made exclusively of at least one air-permeable material suitable for cleanrooms, from a second space surrounding the shell wall, and comprises at least one support element supported on at least one of the floor areas and at least one hanging element provided on the shell wall, having a mobile fan-filter unit, which has an air inlet area and an air outlet area and is outside the first space, and a supply line comprising a material for cleanrooms and connecting the air outlet area to the first space bounded by the shell wall arrangement.

Abstract: The invention is an apparatus having a protective envelope which is designed and constructed to envelope at least one room region, such that the protective envelope is able to separate the at least one room region from an environment immediately surrounding the protective envelope, and use thereof. Methods for operating a production engineering unit under cleanroom conditions and for creating and operating a virus-free and cross-contamination free room region surrounded by a protective envelope for accommodating persons and/or objects subject to quarantine. The invention has a protective envelope with at least two layers separated by a spacer layer, that is flow-permeable.

Abstract: The invention is an apparatus having a protective envelope which is designed and constructed to envelope at least one room region, such that the protective envelope is able to separate the at least one room region from an environment immediately surrounding the protective envelope, and use thereof. Methods for operating a production engineering unit under cleanroom conditions and for creating and operating a virus-free and cross-contamination free room region surrounded by a protective envelope for accommodating persons and/or objects subject to quarantine. The invention has a protective envelope with at least two layers separated by a spacer layer, that is flow-permeable.