Have you ever examined a mask worn by a 5-8 year old after 6 hours of school? Grands bite and suck on the inside of the mask, which is totally wet when they leave school. Perfect science project: culture a worn mask and compare it to the skin under their nose after 6 hours of mask at school.
Have you ever examined a mask worn by a 5-8 year old after 6 hours of school? Grands bite and suck on the inside of the mask, which is totally wet when they leave school. Perfect science project: culture a worn mask and compare it to the skin under their nose after 6 hours of mask at school.