Filter and container having microbicidal activity

A sterilization filter comprising a synthetic polymer film, the synthetic polymer film having a first surface which has a plurality of first raised portions and a second surface opposite to the first surface, a two-dimensional size of the plurality of first raised portions being more than 20 nm and less than 500 nm when viewed in a normal direction of the first surface,

• wherein the synthetic polymer film is arranged in a predetermined shape,
• in the arrangement of the predetermined shape, a direction normal to the second surface varies depending on a position on the second surface, and
• at least part of the first surface is capable of coming into contact with a gas or liquid, and wherein
• the synthetic polymer film further has a plurality of second raised portions superimposedly formed over the plurality of first raised portions, and
• a two-dimensional size of the plurality of second raised portions is smaller than the two-dimensional size of the plurality of first raised portions and does not exceed 100 nm.