A better mask, :dc Microparticle Stopper Masks

:dc Microparticle Stopper masks are manufacture by Dacian Technology Material, a Taiwan-based research and manufacturing company. :dc masks uses a proprietary membrane as a filter layer.

:dc microparticle stopper face mask

:dc microparticle stopper mask filter membrane



:dc Microparticle Stopper face mask filtration table

:dc mask

 Tests Certification
 Virus Filtration Efficiency (VFE)  US Nelson Lab, >99%
 DOP Filtration  US Nelson Lab, >98%
 Bacterial Filtration Efficiency (BFE)  Japan Kaken Lab, >99%
 Blood Penetration 160mmHg  Japan Kaken Lab, Passed
 PM0.075  Japan Kaken Lab, >99%
 Korea KF94  Korea KF94 Certified
 PM2.5 Mask  Taiwan CNS 15980 A Grade Protection
 Bacterial Filtration Efficiency (BFE)  Taiwan TTRI, >99%
 Blood Penetration 120mmHg  Taiwan TTRI, Passed
 PM0.075  Taiwan TTRI, >99%
 PM2.5 in Ambient  NCTU EV, >99%
 Heavy Metals in Ambient, PM2.5  NCTU EV, >95%
 China GB/T 32610 2016  China A Grade Protection


:dc masks are washable

Washing Tips

  • :dc 3D masks are washable and tested to hold the same quality of filtration even after 5 washes. Manufacturer’s recommendation is to wash daily and change weekly. Flat masks are recommended to wash up to 3 times.
  • Soak the mask in soap/detergent water. Hand-wash gently by rubbing both sides of the mask to remove any dirt. Rinse under running water and air-dry. Do not wring or squeeze the mask.
  • Check the mask after each wash against a light. A damaged membrane will show up as a line inside the layers of the mask as it tears away from the lining. Change a new mask if this happens.


Wearing Tips

  • Put the 3D mask on by holding the nose wire section against your nose. Shape the nose wire against your nose and cheekbone as you use your other hand to pull the ear-loops over your ears.
  • If you find the ear-loops feel tight after a while, stretch them out first before wearing. Knot the ends of ear-loops if you find them too loose.
  • Sharpening or flattening the nose wire section can help provide a tighter or looser fit too.


:dc microparticle stopper washable face masks

:dc microparticle stopper mask full product line

About Dacian Technology Material

Dacian Technology Material is based in Taichung City, Taiwan. The team comprises of professionals from the medical, material, and face mask filtration industries. After years of research and development, Dacian Technology launched :dc products which possess both functionality and stylishness.