These masks have 3 layers (I cut open one of the masks to check), and they pass the candle test (can’t blow a candle with it on), pass the water test (water doesn’t soak/leak through), and pass the fire test (melt in the area that’s lit but the fire doesn’t spread). They’re comfortable to wear for long periods of time (they don’t pull on the back of my ears, move up and down my face when I talk, or bite into my cheeks).It’s hard to tell in the product photos, but the masks are NOT individually wrapped. Each package comes with 10 masks, with 5 packages in a shipment (50 masks total).Like how it fits and you can make it snug if need be . Would buy individually wrapped ones like I have before.La calidad y comodidadReasonable price and product is good.Almost every mask I wear fogs up glasses. This is one of the only ones that doesn't and not to mention it's cute.Están cómodosIt's okay. I wear it. It would be easier if the metal insert for the nose were softer to make it easier to bend and shape to the face. It is thicker and harder than some other masks. It's a little big at the bottom and I have to cut a little off the top because it goes up a little too high. I get compliments on the color. I wish it had a smoother texture.This is a well made, light weight product. Just as described. Trouble is, I simply can’t breathe with them on. Got light headed and saw spots. Ended up donating them. Know going in they will securely filter all the germs.