"Wearing masks in the community probably makes little or no difference to the outcome of laboratory‐confirmed influenza/SARS‐CoV‐2 compared to not wearing masks (RR 1.01, 95% CI 0.72 to 1.42; 6 trials, 13,919 participants; moderate‐certainty evidence)."
come on now, be more creative.
the cochrane review has been debunked a thousand times. event the authors expressed concerns about how their conclusion was interpreted and themselves pointed out the flaws in the review design