10 FFP3 masks from Amazon UK delivered to U.S. cost $30.24 — just ordered them:

https://www.amazon.co.uk/FFP3-Masks-Pack-Filtration-Efficien...

Thank you VERY MUCH for your comment; I had NO IDEA FFP3 masks are so much better than N95 — and I am a (retired) anesthesiologist who knows a thing or three about masks.

I wonder why FFP3 masks aren't made here in the U.S.