VINTA face shield provides a sealed layer of protection with HEPA 11 filters to give you amazing protection. This kit comes with 10 filters. Mask has never been worn. I ordered too many for a group of teachers and I need to get rid of the extra, there is nothing wrong with them. We are really happy with how they work. You can see someone’s entire face through this shield. Perfect for reading lips, teaching, or those that just want others to see your facial expressions.