Did you watch the video? It appeared to me that the mask just redirected the particles upward in ALL cases and it didn't trap hardly ANY of the mist. You should watch again.

I agree that Risk Reduction is important. That's why we should distance ourselves, wash hand well, try not to touch faces, don't shake hands with others, and if you are NOT in good health or you are elderly, be more diligent with reducing risks. But masks are very ineffective if you ask me. Yes, yes, yes, there are videos and studies that say otherwise but there are just as many that dispute those videos as well.

A very good friend of mine is a flight attendant with Delta and she is VERY diligent about wearing her mask, making sure passengers are using them properly, following all the other guidelines etc. Well, guess what, she got Covid19 18 days ago and is just now feeling better. She tested positive twice. She can't go back to work until the tests come back negative. She can't have knee surgery now for about 4 more months because there is an antibody test that will detect Covid19 for usually 4 months and hospitals in CA will not perform surgeries like this until the antibody tests are negative as well.

And finally, my brother-in-law is a physician and has written some papers about the use of masks and their effectiveness and he supports my side of things. They are NOT very effective. Yes, they are probably 5% effective, but that's not much. The better N95 masks, worn properly are a little more effective, but not much.....

A question for you. Would you take the word from an expert regarding anything for which there has never been a scientific study verifying its efficacy? I think not, especially if it involves your health. Well consider this--there has NEVER been a single scientific study verifying the eficacy of masks. JNot even a "risk reduction" study. "Wear a Mask" has no science of any kind prooving it's value as a disease preventer. It is merely a suggestion. I wear a mask for several reasons. Mostly because it aint worth the hassel not to. Ajnd I only wear it when indoors. The entire mask thing is political BS so as to convince the public that the politicians are actually doing something.

A question for you. Would you take the word from an expert regarding anything for which there has never been a scientific study verifying its efficacy? I think not, especially if it involves your health. Well consider this--there has NEVER been a single scientific study verifying the eficacy of masks. JNot even a "risk reduction" study. "Wear a Mask" has no science of any kind prooving it's value as a disease preventer. It is merely a suggestion. I wear a mask for several reasons. Mostly because it aint worth the hassel not to. Ajnd I only wear it when indoors. The entire mask thing is political BS so as to convince the public that the politicians are actually doing something.

And I will say that your BIL has not done his research very well. Nothing is effective in of itself. A lot depends on the actual environment and how/what is used. My background is in water purification, all the way to filtering urine into drinking water. It requires several actions and differing filters, which individually will have certain capability, and incapability. Bottom line, there is no one-size fits all solution. However, properly worn masks, with the other regimes, are actually a good start. There are several other actions that actually increase the probability of avoiding the virus, starting with all of us wearing the mask.