Comprehensive Review Confirms Effectiveness of Masks

A comprehensive review has found that masks, particularly well-fitting respirators, are effective in reducing the spread of respiratory diseases. While previous studies, including those by the Cochrane Collaboration, suggested insufficient evidence, this new review incorporated both randomized controlled trials and laboratory studies, showing that masks work and respirators are even more effective. The findings support the CDC's guidance on using high-grade respirators in high-risk environments and emphasize the importance of wearing the best available mask to prevent respiratory infections.