Well, the OP just tested how well masks filter particles, and made comments based on these results. They didn't actually study health outcomes, while the review

Well, the OP just tested how well masks filter particles, and made comments based on these results. They didn't actually study health outcomes, while the review I linked did find studies of health outcomes but didn't find any statistically significant results. On balance, masks in general usage probably help a tiny bit, but it it's much more important to wash your hands properly, so you're better of buying soap and paper towels.