The best mask is Nano Air Mask I have been wearing the Nano Air Mask for about 7 months now. I wear them at work at my Customer Service Job, when traveling and out and about. My voice is not muffled, my glasses don't fog, there is room for my mouth and lips to move around, and with my hot flashes they are still the best masks that I know of. I've started sharing these masks with family, friends, and coworkers and now they purchase them. It's a good secret you want to just keep to yourself but cant. When I know a good thing I have to share.

I love these masks I love these masks. They are well made, comfortable for all day use. They are probably too well fitted for those who must talk for a living, but looser masks feel unsafe all the rest of the time. I keep headband style tensioners around when I need max security, but most of the time I just wear them and feel safe.

At first I thought mask was too thin… At first I thought mask was too thin because it really is paper thin.... however, I love the fact that it allows you to breathe freely cuz the mask doesn’t get sucked in at the nose when you inhale— and because I like to layer two masks at a time for extra protection, it still allowed me to breathe better because it keeps it’s form around the nose and doesn’t wrinkle/move in and out with each breath.

Nano Msk has been an excellent Nano Msk has been an excellent, safe mask for us. This was our third order. It allows us to breathe for extended time while staying comfortable. The mask is only available in white, would much prefer black.

Well-made, not cheap, illegible instructions Masks are lightweight and pretty well sealed. We are told that they are very effective, which I hope is true. One strange thing is the instructions on the package-they are written in very pale. greenish writing, making them almost impossible to read!