Hard container and device comprising same

A hard container configured to be used with a suction device attached thereto, the suction device configured to discharge or spray suctioned content, the hard container comprising a container body having an outer shell and an inner bag, wherein the container body is configured such that the inner bag contracts as the content is reduced, the outer shell comprises a base layer, an adhesive layer, and an EVOH layer in order from outside of the container, the EVOH layer is an innermost layer of the outer shell, an elastic modulus gradient of the container body is 20 N/mm or above, the base layer comprises a polyolefin layer, the container body is provided with an outside air introduction hole that introduces outside air between the outer shell and the inner bag, the outside air introduction hole is provided on a pinch-off part that is formed when a bottom end of a laminated parison is interposed between split molds and crushed by the split molds, and the inner bag is provided to cover an open end of the outer shell.