Commercial product? Homemade?
Whether or not one buys into the idea of airborne transmission, a key argument in favor of wearing a mask is that it helps to remind you to not touch your face. Especially when out and about and your hands are touching random surfaces that other hands have recently touched.
Mask was just one we've probably had a long time, left over from doing something that generated a lot of dust (sanding?). Had the choice between blue or beige, went with the blue.
Don't have any sense that it helps me, but I actually like seeing people at the grocery store wearing masks, and most were. So figured I ought to do the same.
I've got a bandana that I'll be wearing next time I shop, looking like some kind of bandit. My focus is in touching as little as possible. A map case for one hand, that pushes the cart and opens the doors of freezer cases. Other than that, all I touch is the items I'm buying. When I'm done, I throw away the map case.
I've started sewing masks from bandanas and using ribbons from old orienteering medals for the ties. Making a few so I can throw them in the laundry after using. Don't know if they'll do any good but they should help with the not touching my face so much while I'm out.
We (Lyn) found some old masks around for use when out shopping or whatever. I tried one on a glasses immediately started to fog. A known issue which will need solving.
I'm not sure anyone's that confident in the ability of homemade masks to stop the wearer from getting sick, but it does seem like it could help someone sick from getting too many of their germs out in the world. This video from Japanese scientists
studying droplets has a great image of what a sneeze produces with and without a mask. It's also kind of gross.