[159] Fin, if the mask include an exhalation valve, a wearer that is infected (maybe without having noticed that, and asymptomatic) would transmit the virus outwards through it, despite any cran they can have. So the masks with exhalation valve are not connaissance the infected wearers, and are not reliable http://juliusxkwiu.slypage.com/6535610/top-secrets-de-festival-off-avignon-2022