3M 7283 full face mask suction valve

Product name: 7283 full face mask suction valve
model; 7283
product description:
efficient protection against particulate matter, high reliability, smoother breathing, long service life,
can be widely used in welding, brazing, gas cutting, casting, mining, etc., including lead, Copper and arsenic MDA exposed places.
Model description
7283: Full-face mask exhalation valve 50 pieces/box