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KandyMask - Face Mask Filtration Test Results


Our filtration results conforms with ASTM F2100 medical mask standards.

Kandymask has been researching filtration for face masks and air purifiers since 2008. One thing that has been the core of what we do is being “open and transparent” about “testing and performance” to develop great and competent filtration products.

We know face masks are a significant part of your respiratory protection & safety. For that reason, we have backed our masks with scientifically validated & actual performance data. 

Nelson Labs is the world leader in microbiological and analytical laboratory testing. They also use their expertise in performing the pre-qualification tastings for National Institute for Occupational Safety & Health (NIOSH) who certifies N95 masks. They are the gold standard when it comes to medical and pharmaceutical testing. Below is the summary of KandyMask’s filter test results:

  1.  99.80% Viral Filtration Efficiency (VFE) -  (see test report
  2.  99.76% Bacterial Filtration Efficiency (BFE)  - (see test report
  3.  97.14%  Particle Filtration Efficiency (@ 0.07 to 0.3 micron) - (see test report


This test determines how efficiently a face mask filters droplets that contain deadly pathogens. The bacteriophage ΦX174 was aerosolized by a nebulizer and delivered into KandyMask to perform the evaluation. The final results were determined using the entire surface of our mask.

For instance, If a mask has a 95% score in viral filtration efficiency, it will block 95% of droplets that contain viruses. The higher the score, the better the efficiency of the mask in preventing the virus.

KandyMask’s independently tested performance is 99.80% efficient in blocking viral droplets.

99.76% Bacteria Filtration Efficiency

This test determines how efficiently a face mask filters the bacterial droplets. A Staphylococcus aureus (Bacteria) was used for this test. The suspension of the bacteria was aerosolized using a nebulizer and delivered into KandyMask to determine the final result. The entire surface of our mask has been used to determine bacterial filtration efficiency.

The higher the score in bacteria filtration efficiency, the better the mask acts as a barrier against bacteria-carrying droplets.

Performance backed by the data, KandyMask can efficiently block 99.76% of the droplets that contain bacteria. 

97.14% Particle Filtration Efficiency

This test determines how efficiently a face mask can block particle penetration. This is a medical-grade test preliminarily used by medical masks to gain an N-95 status. This test is the best scientific way to back the performance of a mask as an N-95 respirator.

Sodium Chloride (NaCl) is the microscopic particle of salt which allows scientists to replicate different sizes of particulate matter and other pollutants present in the air. Sodium Chloride was generated and pushed through the entirety of the mask to determine test conclusions.

Nelson Labs used particle sizes between 0.075 microns and 0.3 microns. While the mass medium size was 0.26 microns (approx). This size is the most penetrating and difficult size for face masks to capture for filtration. This is the foremost reason why N-95 masks subject themselves to this test.

Proving its performance, KandyMask blocked the particle penetration with 97.14% efficiency. 

Meet and Exceed The CDC, WHO, and Public Health Guidelines

Canadian government guidelines recommend 2 to 4 layers of masks with any type of material, but most of the time it is meant to protect others from you. With our 4 layer polypropylene & medical grade filtration mask you can go beyond the recommendations and equally protect yourself and others. 


Important note: KandyMask is not a medical mask as reusable masks are not certified as medical masks. KandyMask is designed to be a top-rated “Antiviral” filter mask and is meant for public use. Our medical-grade masks are designed to conform to N95 NIOSH particle and bacterial standards for ASTM F2100. NIOSH only certifies medical devices but not masks like Kandymask which are meant for the general public use. Wearing KandyMask or any mask helps to safeguard but doesn’t guarantee protection against disease. It should be used as a tool to protect yourself while keeping practicing social distancing and proper hygiene.