Unite4India Mask Donation – Medium Masks


Help those in need in India by donating masks which are critically needed. Any quantity you purchase will go directly to Unite4India.  4C Air has partnered with Unite4India and the Sadanah Foundation to provide critical supplies to those on the frontlines of the India COVID-19 crisis. Our 4C Air masks filter up to 99% of airborne hazards without the heavy breathing restriction similar to N95 respirators.  Our patented nanotechnology was developed at Stanford University and offers filtration of microscopic airborne particles and super fine PM2.5 hazards. Medium size. 5.10, or 25 masks per pack options.  We also offer Large and Kids sizes.

Enter your shipping address as you normally would during checkout-4C Air will ensure delivers are sent to a Unite4India location.


  • KN95 Certified – GB 2626-2019 (N95 equivalent)
  • Stanford Developed Nanotech Patent
  • Up to 99% Filtration Efficiency
  • Extremely Breathable
  • Ear-Loop Style Bands
  • Adjustable Nose Collar
  • Paper Thin – Weighs only 0.3oz
  • Individually Packaged

All sales are final.


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What makes 4C Air masks better than other masks?

Instead of a mix of melt-blow materials commonly used in most hybrid masks today our particle mask uses a patented nano media material that provides amazing filtration compared to other masks.  Our nano masks average up to 99% efficiency and are GB2626-2019 certified (NIOSH N95 equivalent filtration).

In filtration and breathability tests, our AireTrust masks performed significantly better than competitive brands. Our masks only weigh 1/3 of an ounce and fit snugly against the face using ear loop straps.

Ideal for filtering out harmful airborne contaminants at the PM2.5 level.



Additional information

Weight 2 lbs

5 Pack, 10 Pack, 25 Pack


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