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Why Nano film


High filtration nano membrane has become a substitution of traditional melt blown cloth acts as a barrier to minute dust and virus. Spider-web structure and multi-layer nano- microporous membrane leads to excellent filtration efficiency ≥95% and the protective effect is more stable and lasting.

While mask made of melt-blown non-woven material mainly rely on electrostatic adsorption to reach filtration efficiency, as the wearing time increases (such as 1 to 2 hours), due to the wearer's breathing and other human activities, the mask becomes damp, its electrostatic adsorption ability weakens, and the filtration efficiency gradually deteriorates.

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How important is the fit of the mask?


It is very important that your mask be able to seal completely to your face. Your mask should be well-sized for your face, so no gaps or leaks are detectable around the edge of the mask. If a mask does not seal well to your face, airborne hazards can enter through the gaps in the faceseal. The respirator should not be so large that it is very close to your eyes or impacting your vision.

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3S mask test report is from which organization?


Intertek, the top-Quality Assurance Provider in the world. has confirmed 3S Mask passed through series of tests including the inward leakage test.

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What is RUCO -GUARD C6


RUCO-GUARD C6 is a treatment on fabric from German Rudolf Group which offering THE INVISIBLE FIBRE PROTECTION SYSTEM

  • water-repellent (PFOA-, PFOS-free)
  • oil- and soil-repellent
  • breathable
  • preserves colours and fabrics
  • makes textiles dry faster
  • makes fabric care a child's play
  • resistant to washing and dry cleaning
  • weatherproof

After washing, it is recommended to iron the textile in order to re-activate the protective system.

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What is SILVADUR™ DUPONT


The polymeric nature, low-dosage profile & formulation of SILVADUR™ make it the choice for antimicrobial finishing treatments.

Antimicrobial textiles can cut off the pathways of bacteria to prevent the propagation of germs on textiles, so as to effectively avoid the contact between pathogens and the human body, and reduce the risk of human pathogens and cross-infection rates.

SILVADUR™ Advanced Microbial Control Winner of the R&D 100 Award and recognized as one of the top 100 most technologically significant products.

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What is inward leakage testing


In October 2009, the National Institute for Occupational Safety and Health (NIOSH) proposed to add a test for Total Inward Leakage (TIL) to the certification process for half-mask air-purifying particulate respirators. NIOSH believes that adding this component to respirator testing will help ensure that more users will be able to get an adequate fit, and increase the level of protection for users who are not individually fit tested. ISEA believes the proposed rule would not achieve the goal of improving worker protection, would be difficult for employers to implement, and might have the unintended consequence of less workplace fit testing.

3S mask is the only one cloth mask in the market pass through the inward leakage testing.