| abstract |
There is a need for an air purification filter and an air purification device that collect dust and gaseous impurity components in the air and have high collection performance with low pressure loss over a long period of time. A double-sided semiconductive filter medium sheet is formed by making both the upstream and downstream sides of a filter medium sheet, which is air permeable and collects dust contained in the passing air, semi-conductive, to form a double-sided semi-conductive filter sheet. The potential difference between the sheet upstream surface 2 and the sheet downstream surface 3 of the filter media sheet 4 is controlled to generate ozone, which is harmful to human bodies including harmful gases such as formaldehyde and odorous gases such as captans. It is possible to provide an air purification filter 12 that can oxidize, decompose, purify, and deodorize and purify impurity components. [Selection] Figure 6 |