This is from your source: "The findings of the study found that adherence to mask use significantly reduced (95% CI, 0.09-0.77;P5.015)the risk for infection as

This is from your source: "The findings of the study found that adherence to mask use significantly reduced (95% CI, 0.09-0.77;P5.015)the risk for infection associated with influenza-like illness" https://www.cambridge.org/core/services/aop-cambridge-core/content/view/0921A05A69A9419C862FA2F35F819D55/S1935789313000438a.pdf/testing_the_efficacy_of_homemade_masks_would_they_protect_in_an_influenza_pandemic.pdf https://www.cambridge.org/core/services/aop-cambridge-core/c... "A protective mask may reduce the likelihood of infection, but it will not eliminate the risk, particularly when a disease has more than 1 route of transmission. Thus any mask, no matter how efficient at filtration or how good the seal, will have minimal effect if it is not used in conjunction with other preventative measures, such as isolation..." Cambridge doesn't say masks don't work. You talk as if masks are as effective as dowsing rods and mask-wearers have been duped.