N95, FFP2, KN95, KF94— What is the difference between these respirators and masks?

Recently with more COVID-19 variants emerging and spreading to different countries worldwide, people are feeling the need for extra protection extreamly.  With so many different types of face masks on the markets to choose , which one is the right one for you? Lanhine medeical make surgical medical face mask, kids face mask, face shield, wound care and personel care products. Most people don’t realize that different countries have different standards for these respirators. We’re here to give you a quick comparison and clarify the key differences!

Certification/
Class
(Standard)
N95
(NIOSH-42CFR84)
FFP2
(EN 149-2001)
KN95
(GB2626-20 06)
KF94 (KMOEL – 2017-64)
Filter performance –
must be ≥ X% efficient
≥ 95% ≥ 94% ≥ 95% ≥ 94%
Test agent NaCl NaCl and paraffin oil NaCl NaCl and paraffin oil
Total inward leakage (TIL)*
– tested on human subjects each performing exercises
N/A ≤ 8% leakage (arithmetic mean) ≤ 8% leakage (arithmetic mean) ≤ 8% leakage (arithmetic mean)
Inhalation resistance – max pressure drop ≤ 343 Pa ≤ 70 Pa (at 30 L/min)
≤ 240 Pa (at 95 L/min)
≤ 500 Pa (clogging)
≤ 350 Pa ≤ 70 Pa (at 30 L/min)
≤ 240 Pa (at 95 L/min)
Flow rate 85 L/min Varied – see above 85 L/min Varied – see above
Exhalation resistance – max pressure drop ≤ 245 Pa ≤ 300 Pa ≤ 250 Pa ≤ 300 Pa
Flow rate 85 L/min 160 L/min 85 L/min 160 L/min
Exhalation valve leakage requirement Leak rate ≤ 30 mL/min N/A Depressurization to Pa ≥ 20 sec visual inspection after 300 L /min for 30 sec
Force applied -245 Pa N/A -1180 Pa N/A
CO2 clearance requirement N/A ≤ 1% ≤ 1% ≤ 1%

Post time: Apr-02-2022