Airqueen mask neo nano fiber filte

"The Air Queen mask with ""nano-fiber"" technology provides many advantages, the most important of which are: High protection up to 99% Better breathability, even during exercise as it doesn't store carbon dioxide. Can be used repeatedly, according to KAIST Center studies. Easy to clean, using only alcohol spray. It does not cause a rash. Registered with the US Food and Drug Administration. (FDA) "