Review on 🎭 Individually Packed Air Queen KF94 Mask by Doug Virden

I work in healthcare and wear masks more than 8 hours a day. This mask is quite comfortable, the design allows for easy breathing, but it doesn't fit under the chin leaving gaps. Between the contours of the mask and the face, this can significantly degrade mask performance. The material is a bit rough on the skin. The description says it has 3 layers but it doesn't. There are only two shifts. The material is very thin, almost like paper. Nano filter 0.1 µm, I'm not sure if that's enough. According to a new study, masks made from these fabrics are good at filtering saltwater aerosols ranging in size from 10 nm to 6 µm — the same size as the droplets known to spread respiratory viruses (ACS Nano 2020, DOI: 10.1021/ acsnano .0c03252). . I would not recommend this mask to any friend. I gave it 3 stars because of its ergonomic design that allows you to breathe easily. Not sure how much it protects against Covid-19.