It is seeming to me, that not all of the masks with valves, are the same, and that some would be better than others.
It also seems to me, that in some situations, even the mask with lesser perfection, or one with a valve that didn't come with a filter, could be better than none.
While I do understand fully why in some situations, the wrong type of mask does no good, or might give a false sense of protection,
in other situations, any mask could possibly at least somewhat lower the amount and wide range and distance traveled, of someone's breathing, (thereby at least lowering the risk)
and/OR, I've noticed that in some settings,
wearing a mask, seems to let others know that you are also doing social distancing, and if the visible mask alerts people, then it serves some benefit that way too.
People seem to give me a wider berth, when I have any on, than they give the people I see with none on, because it's assumed, they don't care about the distance, and that's often a correct assumption about them. They arent doing the social distancing either.