3M 9001V particulate protective mask (ear strap type)
can be used to protect certain non-oily particulates and reduce some organic odors (mineral dung trucks, metal dust, fiber dust, pollen, fog, etc.)
3M cold flow breathing valve reduces Heat and moisture accumulate, making breathing easier. High-efficiency electrostatic filter, low breathing resistance, filtration efficiency of non-oily particles and dust above 90%.
3M 9001V Foldable Valve Respirator (Earband Type / Environmental Protection)