| 摘要 |
PROBLEM TO BE SOLVED: To provide a filter capable of having a high collection amount of dust and suppressing increase of pressure drop due to dust collection.SOLUTION: Fibers constituting a cloth of a filter are only fibers each having not-circular cross section and a specific surface area of 1.29 m/g or more. This enables improvement of a void ratio of the cloth. Thus, a collection amount of dust is high, and increase of pressure drop due to dust collection can be suppressed. |
