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…must be cared for, cleaned, maintained, stored, and repaired, as directed by the manufacturer. Respirators must be stored in a clean, resealable container, such as a plastic bag or bin, and should be protected from damage, contamination, dust, sunlight, extreme temperatures, excessive moisture, and damaging chemicals. Cartridges should be stored…
https://www.wichita.edu/services/environmental_health_and_safety/documents/Respiratory_Protection_Program_080122.docx