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Stop Spread of COVID-19 with Highly Protective KF94 Face Masks Available at Be Healthy

The Coronavirus Pandemic is an unimaginable situation that we have never experienced during the last century. To deal with this terrible situation in the absence of curative care or vaccination, a new protocol was placed in the period of the COVID-19 pandemic, where everybody was obliged to wear masks in public places to diminish the spread of the virus. The most critical aspect in selecting the type of mask is how well it can handle user-generated droplets. Indeed, KF94 face masks can collect particles more effectively than surgical mask filters, only because the mask fits the boundary sealing face. One of the most common things people are searching for online this year is the KF94 face masks. From Amazon to family-owned companies, several outlets have reported a rise in sales of KF94 masks as customers look to stock up for holidays and the New Year. With the danger of COVID-19 still in the air, the advantages of wearing a KF94 mask have been well reported. When used under other safety guidelines (i.e., hand washing and disinfecting surfaces), these masks may help prevent the spread of COVID-19 and keep everyone shielded from potentially hazardous airborne particles.

KF94 masks seem to be the most defensive since they fit firmly over the nose and mouth so that few viral particles can seep in or out. They are designed with twisted fibers to filter airborne pathogens—the name refers to their minimum 95 percent effectiveness in filtering aerosols. The Duke analysis found that less than 0.1 percent of the droplets were transferred via the KF94 mask while the wearer was speaking. 

KF94 face masks have a unique high-density electrostatic filter that forms a highly effective barrier for all kinds of minute particles, including viruses, dust, and pollen grains. 

Based on this comparison, it is reasonable to consider China KN95, AS/NZ P2, Korea 1st Class, and Japan DS FFRs as “equivalent” to US NIOSH N95 and European FFP2 respirators, for filtering non-oil-based particles such as those resulting from wildfires, PM 2.5 air pollution, volcanic eruptions, or bioaerosols (e.g. viruses). However, 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.

 

Certification/ Class (Standard)

N95 (NIOSH-42C FR84)

FFP2 (EN 149-2001)

KN95 (GB2626-20 06)

P2 (AS/NZ 1716:2012)

Korea 1st Class (KMOEL – 2017-64)

DS (Japan JMHLW- Notification 214, 2018)

Filter performance – (must be ≥ X% efficient)

≥ 95%

≥ 94%

≥ 95%

≥ 94%

≥ 94%

≥ 95%

Test agent

NaCl

NaCl and paraffin oil

NaCl

NaCl

NaCl and paraffin oil

NaCl

Flow rate

85 L/min

95 L/min

85 L/min

95 L/min

95 L/min

85 L/min

Total inward leakage (TIL)* – tested on human subjects each performing exercises

N/A

≤ 8% leakage (arithmetic mean)

≤ 8% leakage (arithmetic mean)

≤ 8% leakage (individual and arithmetic mean)

≤ 8% leakage (arithmetic mean)

Inward Leakage measured and included in User Instructions

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)

≤ 70 Pa (at 30 L/min)
≤ 240 Pa (at 95 L/min)

≤ 70 Pa (w/valve) ≤ 50 Pa (no valve)

Flow rate

85 L/min

Varied – see above

85 L/min

Varied – see above

Varied – see above

40 L/min

Exhalation resistance – max pressure drop

≤ 245 Pa

≤ 300 Pa

≤ 250 Pa

≤ 120 Pa

≤ 300 Pa

≤ 70 Pa (w/valve) ≤ 50 Pa (no valve)

Flow rate

85 L/min

160 L/min

85 L/min

85 L/min

160 L/min

40 L/min

Exhalation valve leakage requirement

Leak rate ≤ 30 mL/min

N/A

Depressurizatio n to 0 Pa ≥ 20 sec

Leak rate ≤ 30 mL/min

visual inspection after 300 L /min for 30 sec

Depressurizatio n to 0 Pa ≥ 15 sec

Force applied

-245 Pa

N/A

-1180 Pa

-250 Pa

N/A

-1,470 Pa

CO2 clearance requirement

N/A

≤1%

≤ 1%

≤1%

≤ 1%

≤ 1%