I don't need to do my own study. Your own study found that masks "worn" by naive (i.e. not-infected) hamsters did not significantly reduce the COVID-19 transmission rate: "The use of surgical mask partition to protect naive hamsters reduced the transmission rate to 33.3%, although this did not reach statistical significance." To the best of my knowledge, no study has found that mask wearing (other than N-95 or equivalent) by healthy persons has a significant effect.