A Brita filter will filter out something down to approximately 0.5 microns, and unfortunately microplastics get smaller than that: https://www.ncbi.nlm.nih.gov

A Brita filter will filter out something down to approximately 0.5 microns, and unfortunately microplastics get smaller than that: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8563659/#:~:text=Currently%20it%20has%20been%20suggested,%3E1%20cm%20%5B11%5D https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8563659/#:~:tex.... Once it gets down to a certain size, micro-plastic won't be filtered. So basically, and for clarity, my understanding is that microplastics get down to 1 μm, which is like .001mm and the standard Brita does something down to .005mm, so it can’t catch the smallest microplastics, but I assume it will help.