The ear-loop strap has a sliding bead to set the tension, and it has a formable nose piece to get a good fit. It appears to be 2 layers thick where the inner layer is a fleece-like material (supposedly a 1 micron filter material). They are pricey, but can be washed and re-used. i get a better fit if i wear it high on the nose compared to the paper style, and it took me a few times to get used to the feel of the cloth around my face but now i love it.
A blood cell is about 3-6 microns, and bacteria about 1 micron; a virus is 10x smaller than bacteria and 10x larger than an antibody, which is 10x larger than a glucose molecule. So a virus would easily get thru, but they do stop pollen particles.
i have copd/asthma and tree pollen has been really thick this year. Using this mask has been working really well for me. Good luck and keep safe.
In our country, wearing masks has been mandatory for more than two weeks.
They must all be in public, in transport, at work. The exception is a driver who is alone in the car, or a man alone in the countryside. Children under two years of age have an exception.
Masks were scarce, so people made them. Some people sell them for the price of the material, but most of them sell them for free. Today, a lady came to the company and left us twenty masks she made. They are distributed everywhere.
These masks do not protect those who wear them. We have a saying: My mask protects you, your mask protects me.
The principle is to limit aerosol when breathing.
So far it seems to work. Infected increase, but slowly.
The nifty thing is that it uses no sewing machines or any special skills.
I made one and for Texas sized adults it needs to be a bit larger.
Make one out of paper towels or?? to get the fit right before making one out of a better material.
A stiff rubber band (or 2) can be used with some para-cord sheath to make a strap that flexes to hold the fit.
All the best,
there are literally hundreds of videos on youtube with tutorials how to make one, in every language. but it is not a task for everyone,
i made one yesterday. just to try, had to unbury my grandmothers sewing machine, i used hepa vacuum bag, and i used surgical mask design, it has larger area, and it is easier to breathe, than smaller cup design, normally surgical mask is inferior to n90-95, but when made of hepa material, it is much better, than regular surgical mask
Wellp, I got a fleecey baklava that worked great in winter to keep me warm. Gotta go out tomorrow ’cause I’m down to vapors, foodwise. Gonna be hot as Hell, probably, but my time-machine’s broken and I can’t go back 6mos to order something.
Anyone gets too close and I’ll go all Donald Sutherland on ’em…