1) 3D design well fitted to face so air breathes in through the filter and no gaps between the mask n wearer's face.
2) 3 layers with nano colloidal minerals in middle layer killing and prevent bacteria from breeding inside the mask after long hours of wearing. Materials of PP woven is soft and comfy and does not left an obvious mark on face.
3) > 99.87% kill germs ( staphylococcus Aureus ATCC 6538) and 99.94% air borne bacteria; eliminating viruses;
4) Low resistance < 2.0 for better breathability especially for elderly people and women in later stages pregnancy may have reduced lung volumes or breathing issues.
5) >95% filtration efficiency, meeting PM2.5 (particles 2.5microns or smaller) The above tests are all ISO 9001 CERTIFIED.
6) Individually sealed packed for extra hygiene
7) Stretchable ear loop for comfort.
8) SELF STERILIZE by returning back used mask into its plastic cover. For mask self sterilise pls put the used mask back in its plastic cover during a break for meal or bath. Mask usage is counted on actual wearing. High effectiveness sterilization within 24 hours of actual usage.