Used to teach how to fold the filter paper. Compared to a proper filter paper for research, there is a feeling that it looks a little different, but it is educational so there is no problem. Cheap is good.
The features of the product are 1) thicker than the filter paper made by other manufacturers, 2) the roughness of the back side is large, 3) the price is cheap about 200 yen. Although it is used for filtering after extracting the organic solvent after extraction, it can be used without problems at all. I use it in a fold fold. The flow speed is sufficiently fast, and it can be used in the same way as the product which I used to about 1000 yen ever. I think that it is advantageous if you use it on a daily basis.