5Ply: none-woven, melt-blown, activated carbon, melt-blown, none-woven
- 2 layers of High Efficiency Fiber cloth in each pad
- Spunbonded Cloth
- Activated Carbon Cloth
The number of washing:
Cotton mask can wash and reuse multiple times; PM2.5 pad need to change after 2 weeks according to your regular usage.
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