23 Actual Science--a randomized study found--Moisture retention, reuse of cloth masks and poor filtration may result in increased risk of infection. (bmjopen.bmj.com) posted 178 days ago by RonSwanson4prez 178 days ago by RonSwanson4prez +23 / -0 0 comments share 0 comments share save hide report block hide child comments Comments (0) sorted by: top new old worst