| 摘要 |
PROBLEM TO BE SOLVED: To provide a filter medium made of nanofibers formed from rosary type fibers wherein fibers and beads are integrated with each other, and a high air flow-low pressure loss type high capacity air filter using the same. SOLUTION: The air filter is constituted so that a filter pack, which is obtained by folding a nanofiber filter medium comprising the rosary type fibers wherein the fibers and the beads are integrated with each other, is attached to a filter frame through a seal material. In the case of a filter medium passing air velocity of 5.3 cm/s, the nanofiber filter medium constituting the air filter is characterized in that the capacity index of a collection target particle size of 0.3 μm is 0.070 (1/Pa) or above, the capacity index of a collection target particle size of 0.1 μm is 0.050 (1/Pa) or above and the capacity index of a collection target particle size of 0.05 μm is 0.080 (1/Pa) or above. COPYRIGHT: (C)2011,JPO&INPIT |
