Abstract: An airlock extension made of a plasticized material of an accordion type structure which is secured between a clean room and an autoclavable container to overcome the need for an accurate alignment. The airlock extension has a vinyl sheet which extends across the extension to form two separate areas. The vinyl sheet is secured in place by a hook and loop connection which permits easy placement of the vinyl sheet to form two separate areas. The hook and loop strips are provided with parallel spaced rows of loops or hooks and include a compressible gasket between the rows which form a good seal when the hooks and loops are pressed together. The strips of hooks and loops form an easy way of securing the airlock extension the vinyl clean room and a container.