Temperature chamber and environment forming device

A temperature chamber comprising:

• a first wall and a second wall facing each other;
• a temperature adjustment space surrounded by a plurality of walls connecting the first wall and the second wall;
• an air supply port and an exhaust port opening to the temperature adjustment space;
• and
• an installation region where a specimen is to be installed in the temperature adjustment space,
• wherein the plurality of walls include an air supply wall formed with the air supply port and a plurality of side walls connected to the air supply wall,
• wherein a main wind orienting member that overlaps with at least a part of the air supply port when the air supply port is seen from a front, is provided at a position located in the temperature adjustment space and facing the air supply port,
• wherein a first ventilation passage is provided at, at least one of a position between the main wind orienting member and the first wall and a position between the main wind orienting member and the second wall,
• wherein a second ventilation passage is provided on a side of the side wall with respect to the main wind orienting member, and
• wherein a part of blowing air introduced from the air supply port is to pass through the first ventilation passage and to flow into the installation region, and all or a part of the remainder of the blowing air introduced from the air supply port is to be guided to the second ventilation passage by the main wind orienting member and to flow into the installation region.