> A local organic, progressive grocery chain in Marin County will stop you at the door with a vented P100 mask but a flowy, loose fitting bandana, totally open across the bottom goes right in.
What people don't seem to be considering here is that the loose bandana is still directing exhalation down at the ground instead of out at other people's faces like the vented masks.
What people don't seem to be considering here is that the loose bandana is still directing exhalation down at the ground instead of out at other people's faces like the vented masks.