Design & Engineering

ViralOff® Technology

The NanoFit Mask is self-sanitizing because it’s infused with ViralOff® technology by Polygiene, an award-winning Swedish company specializing in advanced treatments for textiles.


ViralOff is proven to reduce SARS-CoV-2 (the virus that causes COVID-19) by over 99% within two hours (ISO 18184:2019).


It protects the mask and allows it to be reusable without frequent washing — saving time and energy while decreasing your environmental footprint.


✓ Environmentally certified by Oeko-tex® Eco Passports
✓ In the process of being certified by bluesign®


ViralOff has been tested against against Influenza A, BirdFlu, Norovirus and Corona (SARS) and meets the ISO 18184:2019 standard* (Determination of antiviral activity of textile products).

Nanofiber Filtration

Our 4-layer replaceable filter is equipped with nanofiber filtration technology and effectively filters particles as small as 0.3 μm (microns).


Viruses such as COVID-19 are often spread through respiratory droplets produced when breathing, talking, sneezing, or coughing. These droplets typically have a diameter of 5-10 μm.


Nanofiber technology provides superior filtration because, unlike traditional filters (such as those found in surgical masks or N95s), it does not depend on static electricity to be effective. If a conventional filter gets wet or damp, it will no longer function properly.


In comparison, our nanofiber filters maintain effectiveness in humid and wet conditions, such as rain, sweat, spit, and condensation produced from regular breathing.

Nanofiber mask filter layers


Fit & Wearability

A well-fitting, comfortable mask is essential to ensure the mask stays in place and to minimize mask adjustments that might cause you to touch your face.


A correct fit also ensures harmful particles cannot leak through gaps between the mask and your face. 

The NanoFit’s proprietary design has the fit and filtration like a built-in double mask.


Easy-remove elastic ear loops provide for comfortable wear and the detachable neck strap option offers additional support for extended wear.

face mask neck strap, mask ear saver

No Valve Contamination Risk

Some masks, including non-medical N95s, have one or two small plastic pieces imbedded in their fabric called exhalation valves.


These are meant to help release heat and vapor from your mouth as you breathe; however, they can also release viruses, bacteria, and other pathogens from the mask wearer.


Some regions (such as the California Bay Area), as well as most major airlines and school districts, have banned masks with valves. 


The NanoFit Mask was designed with nanofiber for excellent breathability without requiring exhalation valves, so you don’t endanger those around you. 

If you have a mask with a valve, you’re not really protecting those around you, which is at least half of the point of wearing a mask in the first place.

Ready to get #SafeWithSilverTek?

THE NANOFIT MASK. We got you covered.

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ViralOff® is not intended to diagnose, treat, cure, or prevent any disease.  It is used for protection of the treated product.