When I breath in face mask clings tighter to my face, meaning the air gets filtered, meaning that unless this dust is smaller than viruses, they'd help.
Of course depends on what face masks you'd be using. Surgical are of not much help, but other than that efficiacy has been studied and confirmed very high in that last pandemic, which spread mostly by airborne particle, not droplets (so contrary to your claim they protect).
Of course depends on what face masks you'd be using. Surgical are of not much help, but other than that efficiacy has been studied and confirmed very high in that last pandemic, which spread mostly by airborne particle, not droplets (so contrary to your claim they protect).
https://pmc.ncbi.nlm.nih.gov/articles/PMC10446908/