So now the govt is going to drop mask mandates at long last!

[harm_less]

It shows that the ill-fitting masks all have plenty of vapour coming out the top and sides but less straight ahead into the face of a person being spoken to. That's why they told us some time ago to get the best fit of the mask you can.

All of that vapour swirling around in the air is what lands on the masks the other people are wearing if they are too close. It's why you wear a mask to stop that swirl getting into your nose, and why you should gel your hands if you need to touch your mask. And be aware that your clothes may have become contaminated in a high-risk situation, especially if you have been within a metre of another person.

That test was demonstrating breath vapour on a cold day. The analogy to the principles of virus contagion is probably reasonable, but the virus will behave differently once it is in the air. The bottom line is, to be as safe as possible, wear the mask properly and keep a distance from other people. Just as we have been advised to do for 2+ years now.

In an indoor environment, its not going to do alot, in some cases could even be worse like in a plane with the person sitting next to you it could redirect it to the side instead of the front.

https://www.dictionary.com/e/a-lot-vs-alot-vs-allot/