• Tri-folding design provides larger interior space and improves breathing comfort

• High-efficiency electrostatic filter cotton, with low breathing resistance, the filtration efficiency of non-oily particles is above 95%

• 3M's unique cold flow exhalation valve reduces exhalation resistance and helps expel heat and moisture

• Embossed top panel reduces airflow through the top panel to help reduce fogging of glasses

Suitable for oily and non-oily particulate protection, including welding, cutting, casting, grinding, bagging, cleaning and other operations, more suitable for the protection of highly toxic and radioactive particulates