Covid 19 : What’s the main difference between N95 facemask and KN95 facemask ? ?
N95 facemask and KN95 facemask Both are respirator masks , but the difference is that N95 masks are US standard for respirator masks (Certification/ Class (Standard) United States NIOSH-42CFR84) and KN95 are the Chinese standard for respirator masks (Certification/ Class (Standard) China GB2626-2006) . So What's The Difference ? Search Results Web results 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,