Substrate storage container

A substrate storage container comprising:

• a container main body comprising a plurality of pairs of support pieces capable of accommodating a plurality of substrates;
• an air feed valve for supplying a substrate protecting gas from an outside of the container main body to an inside of the container main body;
• and,
• an air replacement unit configured to blow out the substrate protecting gas from the air feed valve into the inside of the container main body;
• and
• an air flow path,
• wherein the container main body has a front open box form with the air feed valve attached at a bottom in a rear part of the container main body,
• wherein the air replacement unit includes a housing member for reserving the substrate protecting gas flowed in through the air feed valve and a covering member that covers an open face of the housing member,
• wherein a bottom of the housing member is connected to the air feed valve so as to flow the substrate protecting gas,
• wherein the covering member is formed with a plurality of blow holes for blowing the substrate protecting gas in the housing member toward a front of the container main body, and
• wherein a space is formed between the air replacement unit and an inner face of a rear wall of the container main body,
• wherein the air flow path comprises the space and a clearance, the clearance defined between an inner face of a ceiling of the container main body and an airflow regulating member that faces the ceiling, and
• wherein the air flow path is communicated with a lower area inside the container main body.