astm level 2 medical face mask is a professional medical face mask. nelson lab face mask tested, During the period of COVID-19 transmission, the effective organization of the spread of the COVID-19 virus is very suitable for daily protection.
Performance Factor Results
Characteristics: Level 2
Resistant: 120 mmHg
Differential Pressure: <= 5.0
Flame Spread: Class 1
These masks should be disposed of after each use. These masks contain an aluminum nose piece and should be stored in a cool, dry place. Avoid exessive heat( 40C or 104F)
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