Replaceable filter gauze mask-custom mask cover three-dimensional washable

[Interchangeable filter gauze mask😷] Have you ever spent a lot of money on a medical-grade mask and experienced the painful break of the "tightening band" and the "junction" of the mask? Now whether you are a Zhongwei mask, 3M activated carbon, or Guisongsong medical grade mask can be put into our masks and reused, just clean the mask fabric. https://youtu.be/Pm01lwUQmCc [Material Description] Replaceable filter gauze mask material is made of Japanese yarn (double yarn) for newborn gauze clothing (gauze towel), which is very suitable for contacting the skin on the face. " If you still ask where to buy the mask cover, the bar version really recommends that we can change the filter gauze mask. #Containing mask shaped fish bone can make the mask more conformable and greatly improve the tightness of the mask