| 摘要 |
PROBLEM TO BE SOLVED: To provide a thin air purification filter having excellent resistance against wind. SOLUTION: The air purification filter is in a form of double-face corrugated paper composed of a filter material having an air purifying function as a corrugating medium and a base material having air permeability, preferably made of a net as a liner according to JIS-Z-1516 'Corrugated Fibreboards for Shipping Containers'. COPYRIGHT: (C)2003,JPO
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