ASTM Level 3 Procedure Face Masks with Ear Loops - Pleate-style masks meet Level 3 ASTM F2100-19 Standard Great for situations requiring moderate-to-high fluid protection Anti-fog strip of soft and comfortable foam helps prevent eyeglasses from fogging, ensuring optical clarity Spunbond polypropylene outer layer and thermalbond polypropylene inner layer Engineered to b
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