I have seen some models/videos of particles coming out of mouths, i have also read one research paper about mask effectiveness with a perfect seal on a dummy (Catches 50% of large droplets, less than 10% of aerosols) .
Someone shared a huge list a few months back but I didn't go through them.
None of the mask-supporting studies were RCTs (Randomized Controlled Trials). All mask RCTs show that cloth masks and surgical masks do not reduce the chance of getting a flu/airborne illness. And no RCTs relating to "masks reduce the spread" have ever been completed.
I have seen some models/videos of particles coming out of mouths, i have also read one research paper about mask effectiveness with a perfect seal on a dummy (Catches 50% of large droplets, less than 10% of aerosols) .
Someone shared a huge list a few months back but I didn't go through them.
None of the mask-supporting studies were RCTs (Randomized Controlled Trials). All mask RCTs show that cloth masks and surgical masks do not reduce the chance of getting a flu/airborne illness. And no RCTs relating to "masks reduce the spread" have ever been completed.