Certainly, different approaches are always under consideration. The one I would highlight for N95 is more around sterilization and reuse. These are such a precious commodity at the moment, is there not a way to reuse them? It happens now, but we're looking to expand the way in which they can be reused to have less waste, as it's a precious good.
I can't speak to whether other discussions are under way about alternatives to N95, but that would be more in the realm of ISED.