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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,