I look at the reviews, the number of items sold, and don’t pick the cheapest one. The best is if there are reviews that show a mask cut open and you can see whe

I look at the reviews, the number of items sold, and don’t pick the cheapest one. The best is if there are reviews that show a mask cut open and you can see whether it has the required number and type of layers. I’m not too worried about unsafe materials, but if you don’t feel comfortable with it, don’t order them. The safest thing you can do is buy masks from a pharmacy in person if they are available.