I normally use a surgical mask these days.
Now I finally understand the difference between all the masks:
Shirt/Sando “mask”, home-made mask, surgical mask, N95 mask, 3M Vflex N95 mask and Copper mask.
Shirt/Sando “mask”, home-made mask, surgical mask, N95 mask, 3M Vflex N95 mask and Copper mask.