• iAvicenna@lemmy.world
    link
    fedilink
    English
    arrow-up
    6
    ·
    2 months ago

    I mean BBB filter threshold is anywhere from 2.3 to 50 nm depending on pressure. Even though microplastics can get down to 1nm that is like an outlier. So in a situation where virtually almost all of microplastics must be filtered out, how does one get such a huge percentage as 0.1%?