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KN95 Protective Mask - 5 Masks per package

$ 10.00

KN95 Protective Mask - 5 Masks per package
KN95 Protective Mask - 5 Masks per package KN95 Protective Mask - 5 Masks per package KN95 Protective Mask - 5 Masks per package KN95 Protective Mask - 5 Masks per package KN95 Protective Mask - 5 Masks per package KN95 Protective Mask - 5 Masks per package KN95 Protective Mask - 5 Masks per package KN95 Protective Mask - 5 Masks per package

High-grade Protective Masks.

Let us be real. The Masks people are using are NOT WORKING.

Three-Ply-Mask A recent study measured Filter efficiency across a wide range of small particle sizes (0.02 to 1 µm) at 33 and 99 L/min. All the cloth masks* and materials had near zero efficiency at 0.3 µm, a particle size that easily penetrates into the lungs. t-shirt-mask

Our Masks have tested at almost 98% efficient for .3 micron

KN95-testing

kn95(K)N95 respirators (Like Ours) had efficiencies greater than 95% (as expected).

T-shirts* had 10% efficiency,
Scarves* 10% to 20%,
Cloth masks* 10% to 30%,
Sweatshirts* 20% to 40%, and
Towels* 40%.

Another study evaluated 44 masks, respirators, and other materials with similar methods and small aerosols (0.08 and 0.22 µm).

(K)N95 FFR filter efficiency was greater than 95%.
Medical masks - Three-Ply – 55% efficiency
General masks – 38% and
Handkerchiefs – 2% (one layer) to 13% (four layers) efficiency.

KN95 Texas

Filtering face-piece respirators (FFR), which are sometimes called disposable respirators, are subject to various regulatory standards around the world. These standards specify certain required physical properties and performance characteristics in order for respirators to claim compliance with the particular standard. During pandemic or emergency situations, health authorities often reference these standards when making respirator recommendations, stating, for example, that certain populations should use an “N95, FFP2, or equivalent” respirator.

We are proud to offer for your consideration the following masks certified as such. These masks are compliant under both of the following certifications.

  • FFP2 (Europe EN 149-2001)
  • KN95 (China GB2626-2006)

As shown in the following summary table, respirators certified as meeting these standards can be expected to function very similarly to one another, based on the performance requirements stated in the standards and confirmed during conformity testing. One notable comparison point is the flow rates specified by these standards for the inhalation and exhalation resistance tests. Inhalation resistance testing flow rates range from 40 to 160L/min. Exhalation resistance testing flow rates range from 30 to 95 L/min. This chart shows a representative filter pressure drop curve. If one filter is tested at a high flow rate, the pressure drop performance will be relatively high. If that same filter is tested at a low flow rate, the pressure drop performance will be relatively low. (3m.com)

KN95 Flow Tese

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). (3m.com)

N95 vs FFP2 vs KN95

Definitions

Filter performance– the filter is evaluated to measure the reduction in concentrations of specific aerosols in air that passes through the filter.

Test agent- the aerosol that is generated during the filter performance test.

Total inward leakage (TIL)– the amount of a specific aerosol that enters the tested respirator facepiece via both filter penetration and faceseal leakage, while a wearer performs a series of exercises in a test chamber.

Inward leakage (IL)– the amount of a specific aerosol that enters the tested respirator facepiece, while a wearer performs a normal breathing for 3 minutes in a test chamber. The test aerosol size (count median diameter) is about 0.5 micrometer.

Pressure drop– the resistance air is subjected to as it moves through a medium, such as a respirator filter.