Masks don’t work to prevent catching the virus. (They may work reducing spread if sick people wear them, like Asia has been doing for decades)
Healthy people wearing masks doesn’t work in real life.
“Healthy people wearing masks doesn’t work in real life.”
How do you know that everyone without a mask is healthy?
It doesn’t reduce much even if sick people wear them. Masks are pretty much useless except for virtue signaling. That said stores have a right to request you wear them just as you have a right not to s red such institutions. There is no place or excuse for violence in the debate particularly against employees who don’t make the policy
Especially the way I’ve observed people wearing them. Like removing them to speak. Like wearing them without a good seal to the face so air runs past the gaps. Or using masks made of a material that simply will not stop the virus from passing through in during an inhale.
To many it’s a fashion statement similar to statements of wealth being the yacht or large estate. Those without the masks are lesser people.
I can see how they’d stop large particles containing the virus existing an infected person.
the N95's might be better then the flimsy paper ones...
but you're right....wearing a mask is primarily to protect others...
"The main transmission path is long-residence-time aerosol particles (< 2.5 μm), which are too fine to be blocked, and the minimum-infective-dose is smaller than one aerosol particle."
From this study: > https://pubs.acs.org/doi/10.1021/acsnano.0c03252
In conclusion, we have measured the filtration efficiencies of various commonly available fabrics for use as cloth masks in filtering particles in the significant (for aerosol-based virus transmission) size range of ∼10 nm to ∼6 μm and have presented filtration efficiency data as a function of aerosol particle size. We find that cotton, natural silk, and chiffon can provide good protection, typically above 50% in the entire 10 nm to 6.0 μm range, provided they have a tight weave. Higher threads per inch cotton with tighter weaves resulted in better filtration efficiencies. For instance, a 600 TPI cotton sheet can provide average filtration efficiencies of 79 ± 23% (in the 10 nm to 300 nm range) and 98.4 ± 0.2% (in the 300 nm to 6 μm range). A cotton quilt with batting provides 96 ± 2% (10 nm to 300 nm) and 96.1 ± 0.3% (300 nm to 6 μm). Likely the highly tangled fibrous nature of the batting aids in the superior performance at small particle sizes. Materials such as silk and chiffon are particularly effective (considering their sheerness) at excluding particles in the nanoscale regime (<∼100 nm), likely due to electrostatic effects that result in charge transfer with nanoscale aerosol particles. A four-layer silk (used, for instance, as a scarf) was surprisingly effective with an average efficiency of >85% across the 10 nm −6 μm particle size range. As a result, we found that hybrid combinations of cloths such as high threads-per-inch cotton along with silk, chiffon, or flannel can provide broad filtration coverage across both the nanoscale (<300 nm) and micron scale (300 nm to 6 μm) range, likely due to the combined effects of electrostatic and physical filtering. Finally, it is important to note that openings and gaps (such as those between the mask edge and the facial contours) can degrade the performance. Our findings indicate that leakages around the mask area can degrade efficiencies by ∼50% or more, pointing out the importance of “fit”. Opportunities for future studies include cloth mask design for better “fit” and the role of factors such as humidity (arising from exhalation) and the role of repeated use and washing of cloth masks. In summary, we find that the use of cloth masks can potentially provide significant protection against the transmission of particles in the aerosol size range.
Except it’s been shown the greatest danger of spread is from those in the assymptomaitc phase of infection.
So you CANT KNOW if you are infected.
Father store can insist you wear shoes and a shirt they can insist you wear a mask.
Don’t want to? Shop someplace else.