Covid 19 : What’s the main difference between N95 facemask and KN95 facemask ? ?
N95 facemask and KN95 facemask
So What's The Difference ?
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Even though they both appear to be alike there is some difference appearances aside,
*the US standard American manufactured N95 masks can in fact withhold more pressure than the later when person wearing it breaths .
Lets list details and differences between them according to 3m standards.
Total inward
leakage (TIL) - N95 = nil , KN95 = ≤ 8% leakage .
Inhalation
resistance - N95 = ≤ 343 Pa , KN95 = ≤ 350 Pa.
Exhalation
resistance - N95 = ≤ 245 Pa , KN95 = ≤ 250 Pa .
Exhalation
valve leakage - N95 = ≤ 30
mL/min , KN95 = 0 Pa ≥ 20
sec .
Force applied - N95 = -245 Pa , KN95 = -1180 Pa .
*N95 masks, which filter at least 95 percent of particles that are 0.3 microns and larger
* Prior to selecting a
respirator, users should consult their local respiratory protection regulations and requirements or check with their local
public health authorities for selection guidance.
#Covid 19
#Coronavirus
cite : Wikimedia Commons contributors, "File:An Army Corporal adjusting her mask as she puts on her personal protective equipment. MOD 45159003.jpg," Wikimedia Commons
