Partition

A partition comprising:

• a first structure;
• a deformable partitioning portion connected to the first structure, the deformable partitioning portion having a first end portion on a side connected to the first structure and a second end portion on a distal side from the first end portion,
• the deformable partitioning portion being configured to partition a predetermined space with respect to an adjacent space,
• the deformable partitioning portion being configured to deform into
• a first state of being accommodated in an inner portion of the first structure, of being wound around an outer periphery of the first structure, or of being folded in a vicinity of the first structure, and
• a second state in which a maximum value of an area of the deformable partitioning portion when viewed from every direction in a horizontal direction is larger than in the first state,
• the deformable partitioning portion being configured to take a plurality of different forms of the second state,
• the deformable partitioning portion having a first surface and a second surface opposite to the first surface, and
• the deformable partitioning portion being configured to take, as the second state, a first form of protruding on a side of the first surface and a second form of protruding on a side of the second surface;
• and
• an air-environment adjusting portion disposed at at least one of the first structure and the deformable partitioning portion, the air-environment adjusting portion including at least one of
• a cooling portion configured to cool air,
• a heating portion configured to heat air, and
• an airflow generating portion configured to generate an airflow.