Can you use it to pay for your meal at McDonald's (pre-covid when people actually ate inside the restaurant)?
Amazon is bringing me one of these tomorrow. I want to do some RFID experimenting with one of my Raspberry Pi's.
https://www.amazon.com/Deadliest-Enemy-Against-Killer-Germs/dp/0316343692
Haven't yet read it myself but Dr. Michael Oserholm has been warning about this and exactly what needs to be done to handle this very scenario for over a decade.
Well, I have just gone down a rabbit hole of masks and filters! Thanks so much for the tips, and I will probably be getting one of these sometime soon. I did find a pretty good deal on those filters on amazon if you need some more. Comes out to a little less than the 15 per pair.
EDIT: I just realized these are not 3M, sorry.