The present invention refers to body has an internal space; said inner space of the main body, and partition a compartment compartment and number 1 number 2, that communicate between the single compartment and said number 1 air between compartment said number 2 in which the entering hole and an air outlet hole is formed a partition wall; said air inlet passing through the air in a compartment number 2 number 1 the inlet flows into compartment, passing through the air outlet said air in a compartment number 1 number 2 by drawing out compartment, air circulation unit circulates air a for circulating air; said number 1 in a compartment is provided to the, air circulation unit circulates air to said air drawn by a for purifying air purifying member; and said number 1 in a compartment is provided to the, said air purifying member purged by temperature and humidity in the case of a failure includes a moist heating share-crop paragraph department , and is housed in a compartment the recorded matter with said number 2, said number 2 passing through the air outlet the air outlet compartment said air purifying member in high or low internal voltage characteristics depending, said moist heating share-crop paragraph department in temperature and humidity conditioned air provides a recorded matter preserving chamber. Recording by a water storage chamber the present invention recorded matter preservation and air range moist heating in order to be adapted to the material real estate can be conserved as the little toxicity thus preventing secondary recording the process has an advantage of having.