Odor adsorbent material, odor detection kit, and method for using same

A method for recovering an odor detection kit, the method including:

• removing an odor detection kit installed in a facility for production or distribution of a commodity, the odor detection kit including
• a first odor adsorbent material and a second odor adsorbent material;
• a package section that includes a first storage section capable of storing the first odor adsorbent material and a second storage section capable of storing the second odor adsorbent material;
• and
• a sheet section, wherein
• the first odor adsorbent material is sealed in the first storage section,
• the second odor adsorbent material is exposed to an external open space located in the facility, the open space being an odor detection target, and
• the first storage section and the second odor adsorbent material are installed in the open space;
• storing and sealing, in the second storage section, the second odor adsorbent material exposed to the open space in the facility;
• entering, in the sheet section, information that specifies at least a time when the odor detection kit has been recovered;
• and
• after the sealing and the entering, sealing the odor detection kit in a pouch material that has barrier property and odorless property.