RE:RE:Nanoxplore VS Quantum ScapeYou are truly a know nothing the king of the bozos, Nanoxplore is already approved by health Canada, the Graphene they are referring to is graphene oxyde produced in China : reported the masks were made by Mtallifer, a Quebec-based manufacturer. In fact, the masks were sold and distributed by Mtallifer but were manufactured by one of its suppliers in China.