When you wear one of those useless and dangerous masks, remember that you directly or indirectly pollute nature and kill animals. And don't try to give yourself a clear conscience by telling yourself that you discard them in a trash bin and not in nature. They will end up there anyway! Imagine the damages caused by 3 billion masks per day! (on top of plastic bags, sanitary pads, and various containers) The solution is simple: DO NOT WEAR ANY MASKS!