Blast cell cooling with guided airflow

A blast cell comprising:

• a housing;
• a plurality of racks inside the housing that define a volume, wherein the plurality of racks is configured to support a plurality of cases of items, wherein the plurality of racks each includes a plurality of rows, each of the plurality of rows being configured to hold one or more of the plurality of cases of items to be cooled;
• a plurality of air channels inside the housing, wherein each of the plurality of air channels is fluidly separate from each other, wherein each of the plurality of air channels is configured to direct a portion of airflow of released cool air from a cooling system to each of the plurality of rows in a respective rack of the plurality of racks;
• and
• a fan configured to circulate the airflow of the released cool air through the plurality of racks and the plurality of air channels in a closed-loop within which the airflow is circulated within the housing,
• wherein the plurality of air channels is shaped to be narrower at a first end of the plurality of air channels that is proximate the fan than a second end of the plurality of air channels that is proximate the plurality of racks, wherein the second end is opposite the first end, the second end of the plurality of air channels having a width larger than a width of the first end of the plurality of air channels, wherein a total width along a length of the plurality of air channels becomes smaller from the width of the second end of the plurality of air channels to the width of the first end of the plurality of air channels.