PASS BOX FOR DECONTAMINATION

A pass box configured to carry out complete decontamination of an article in a short time without affecting thermal status of a thermosensitive substance that may be present at an outer surface of the article. The pass box includes several zones (a carrying-in zone, a decontamination zone, an aeration zone, and a carrying-out zone) and a carrying apparatus configured to transfer the article inside the pass box. A decontamination-agent applying device of the pass box includes means for generating compressed-gas, means for supplying a decontamination agent, a mixed gas-liquid regulator intermixing the compressed gas and the decontamination agent and regulating the resulting mixed gas-liquid, and a heater heating the mixed air-liquid and transforming it into a decontamination agent mist. Amounts of the compressed as supplied from the compressed-gas generating means and the decontamination agent supplied from the decontamination-agent supply means, a heating temperature of the heater, and a temperature of the decontamination agent mist applied to the outer surface of the article are controlled.