About Our KN95 NON-MEDICAL MASK
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5 layer with 2 layers of meltblown non-woven fabric
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BFE (Bacterial Filtration efficiency)>95%
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ear loop type, easy to wear.
For wholesales, please contact us separately. Amazing price guaranteed.
Standard: GB2626-2006
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Based on CDC and FDA's 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).
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​YECO’s non-medical KN95 mask follows the standard of GB2626-2006, as the standard mentioned in the following chart. Lots of kn95 mask sellers are selling 4 layer KN95 masks, YECO’s KN95 masks are 5 layers, which means better quality.
Real Meltblown Non-woven Fabric THAT MATTERS
Meltblown non-woven fabric is a primary material used in the manufacturing of medical and surgical masks. This middle layer is usually created from polypropylene (PP) melt-blown non-woven fabric and is treated to be an electret. The electret treatment adds electrostatic properties to the filter layer allowing for electrostatic adsorption which helps to trap aerosolized particles via electrostatic attraction.
(real meltblown fabric: when you burn real meltblown non-woven fabric, it melts with absolutely NO FLAME, instead of burning; videos available upon request too.)
These meltblown inner filter pieces have been torn up and are being held together by the fabric’s own static charge. This static charge is a feature of the fabric and provides electrostatic attraction for particles and assists with the overall filtration of particles for the mask.
0ur Masks Performance:
Filter Performance (have to be above >=95%) : (NaCl filtration efficiency, NaCl particle matter %).
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Without pretreatment (Picking 10 Random Samples): 98.5%, 99%, 98.3%, 98.7%, 98.1%, 98.6%, 98.7%, 98.4%, 98.3%, 98.2%. ( as you can see, the filter performance of our masks without any pretreatment is over 98%.)
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With temperature and humidity treatment(picking 5 random samples): 95.1%, 95.2%, 95.1%, 95.2%, 95.2%. ( as you can see even with temperature and humidity treatment, every single of our mask’s filter performance is above 95%.)
Respiratory Resistance Test:
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Total inspiratory resistance, Pa: with/without pretreatment (total inspiratory resistance of each sample should not be greater than 350). (random picking 4 samples): 66, 68,63,65. (as you can see, we are way below 350, all our samples are under 70.)
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Total expiratory resistance, Pa: with/without pretreatment (total expiratory resistance of each sample should not be greater than 250). (random picking 4 samples): 78, 78, 74, 74. (as you can see, we are way below 250, all our samples are under 80.)
please contact us for our KN95 non-medical mask quality inspection test report, more videos and pics.