3M 80 Pack N95 Particulate Respirator with Cool Flow Valve for Easy Breathing - Stretchable, Lightweight, Disposable (8511) 20 experiments in the 48

3M 80 Pack N95 Particulate Respirator with Cool Flow Valve for Easy Breathing - Stretchable, Lightweight, Disposable (8511) 20 experiments in the 4880 Pack (one case containing eight boxes of 10) NIOSH APPROVED N95 for at least 95 percent filtration efficiency against certain non oil based particles and aerosols 3M COOL FLOW EXHALATION VALVE helps direct exhaled air downward and allows for easy breathing UP TO 50% EASIER BREATHING. Compared to non valved 3M 8200 Testing ADVANCED FILTER MEDIA for easy breathing ADJUSTABLE M NOSECLIP helps provide a custom and secure seal STRETCHABLE, BRAIDED

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