you're right, there are differences between masks. But to be honest, a simple mask is enough for the people on the streets. Just like why a surgeon is wearing a mask: to protect the patient (others) from him- or herself. The most important are N95 masks or better, but only for those who are on the frontline.
I hope this stock goes up and will be a winner, I had my share ;) but to be honest, the company does not offer such an unique concept.
The only way it will be, is when they make Cv-19 positive patients wear a mask for 3 weeks (would be a good idea though). And for tackling the virus, I hope they will ;)