TW has passed the national certification of replaceable dust mask and direct connection small poisonous mask on one side. This allows you to install either a filter or an absorbent can depending on your working environment.
It has a good working face with less protrusion in the front. Wide field of view and can be used with welding surfaces and protective glasses.
The silicone rubber surface is gentle on the skin with excellent heat and cold resistance.
2 pieces will last approximately 4 times longer than 1 dust mask filter. (Compare with the same filter T2)
No metal parts.
Purchase the face and filter or absorbent can.
The photo comes with 2 filters x 2.