Thanks. For those not following the link, this study shows that NaCl aerosols penetrate measured surgical masks at a much higher rate than n95 masks, even after creating a firm seal.
It is hard to tell what exactly was tested in this study. It mentions the standards which the tested respirators met but there is no mention of any standards regarding the tested surgical masks. Were they surgical masks that met the ASTM standards for surgical masks? If so the level 1, 2 or 3 standards?
The solution Save The Face Mask proposes is designed to work with surgical masks which meet ASTM standards. Given the lack of information regarding the masks tested the quoted study is fairly useless in evaluating the proposed solution.