It is 1-time throwing away in case of a pure dry type filter.
It could wash, when it was this filter, and it could consider that a belt is carried out using 3 or 4 times, and purchased.
It can wash, although an aim is bingo and the four corners of yellow sponge are pasted up firmly.
Since washing may not be assumed, it becomes self-responsibility.
If sponge worsens, it will also be possible to cut and divert the tabular filter sponge of a general-purpose article.
Although it is with a power up type, probably, a physical feeling is a range with error.