LOL....just when I thought your posts couldnt get any dumber, you prove me wrongDespite what facts say.
BTW, in case you missed it, N95 masks are listed so as they have at least a 95% efficient at stopping particles as small as 0.1 microns. Just like any other mask, they REDUCE transmission, not stop transmission.
Meanwhile a study of FDA approved surgical masks found that they were 98% efficient at 0.1 microns.
Filtration Performance of FDA-Cleared Surgical Masks - PMC
Ashortage of NIOSH-approved respirators is predicted during an influenza pandemic and other infectious disease outbreaks. Healthcare workers may use surgical masks instead of respirators due to non-availability and for economical reasons. This study ...www.ncbi.nlm.nih.gov
I know that science won't change your opinion but facts are facts.
According to the study you posted (which I'll bet you didnt even read), the masks they used were FDA-cleared surgical masks. I post the exact quote from the study:
Now lets look at the FDA website and see what they have to say about FDA-cleared surgical masks (NOTE: these are not the same as N95 masks).Five models of FDA-cleared surgical masks were tested for room air particle penetrations at constant and cyclic flow conditions. Penetrations of polydisperse NaCl aerosols (75±20 nm, count median diameter), monodisperse NaCl aerosols (20–400 nm range) and particles in the 20–1000 nm range were measured at 30 and 85 liters/min
Link: https://www.fda.gov/medical-devices...-respirators-surgical-masks-and-face-masks#s2
I have bolded in red the important relevant parts to help you understand better
Now what did I tell you?? Surgical masks do not stop infected air that people breathe out from spreading to other people.Surgical Masks
A surgical mask is a loose-fitting, disposable device that creates a physical barrier between the mouth and nose of the wearer and potential contaminants in the immediate environment.
Surgical masks are made in different thicknesses and with different ability to protect you from contact with liquids. These properties may also affect how easily you can breathe through the face mask and how well the surgical mask protects you.
If worn properly, a surgical mask is meant to help block large-particle droplets, splashes, sprays, or splatter that may contain germs (viruses and bacteria), keeping it from reaching your mouth and nose. Surgical masks may also help reduce exposure of your saliva and respiratory secretions to others.
While a surgical mask may be effective in blocking splashes and large-particle droplets, a face mask, by design, does not filter or block very small particles in the air that may be transmitted by coughs, sneezes, or certain medical procedures. Surgical masks also do not provide complete protection from germs and other contaminants because of the loose fit between the surface of the mask and your face.
Surgical masks are not intended to be used more than once. If your mask is damaged or soiled, or if breathing through the mask becomes difficult, you should remove the face mask, discard it safely, and replace it with a new one. To safely discard your mask, place it in a plastic bag and put it in the trash. Wash your hands after handling the used mask
The only thing it stops is large droplets, but that doesnt really matter because most people (especially in the summer) arent coughing or sneezing, but rather they are breathing out their infected air to others.
Maybe now you'll understand why wearing masks made ZERO difference in our daily new infection rate, and actually may have made things worse because it gave people a false sense of security and caused people to cram buses, streetcars, subways....etc thinking they would be safe from the virus since everyone was wearing masks
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