1.FFP2 (also FFP1 and FFP3)2.N95 (also N99 and N100) where N stands for ‘non-oil resistance’3.P95 (also P99 and P100) where P means ‘oil proof’ 4.R95 (also R99 and R100 where R means ‘oil resistance’

1.FFP2 (FFP1 और FFP3 भी) 2.N95 (N99 और N100 भी) जहां N का अर्थ है 'गैर-तेल प्रतिरोध' 3.P95 (P99 और P100 भी) जहां P का अर्थ है 'तेल प्रमाण' 4.R95 (R99 और R100 भी) जहां R का अर्थ है 'तेल प्रतिरोध'

What are different types of safety masks based on grades?

ग्रेड के आधार पर विभिन्न प्रकार के सुरक्षा मास्क कौन से हैं?

Q. What are different types of safety masks based on grades?

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