3M 7N11 DUST/MIST PREFILTER 7156
NIOSH approved for environments containing non-oil based particles. Use
with the 3M™ Filter Retainer 7289, or with 3M™ Cartridges 7000 Series
and 3M™ Cartridge Retainer 7287. Not for use with facepieces with
bayonet cartridge holders. When properly fitted, use in a variety of
applications such as grinding, sanding and welding, or with appropriate
cartridges for various applications including spray painting,
petrochemical and chemical manufacturing, and pesticide spraying.