| 摘要 |
<P>PROBLEM TO BE SOLVED: To prevent infection from viruses having a low resistivity to a high temperature such as SARS. <P>SOLUTION: A heat generating part is formed and a heated air is generated by disposing an electric heater with a battery or a pack containing a reduced iron powder on a filter 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI |
