RE:HC APPROVAL ONWARD AND UPWARD HVAC NEXT?Yes, graphene coating of the surface of masks to protect against disease is merely scratching the surface of graphenes potential. I wonder when we will get an update on the other applications of graphene that Zen has been exploring, e.g., graphene becoming an ingredient in cement which, in theory, means you can use less cement and the cement is stronger (and perhaps more flexible?). Of course, pursuing the coating application was and is the right thing to do because it opens the door to fairly immediate monetization of Zen's graphene.