Callfo Anion Protection Mask
- PM 2.5 Effective Filtering,
- 5 layers Layer Protection- enable to release negative ions
- High Anion
- Environmental Friendly
- Washable and reusable
- Suitable for adults and children.
- Each box c/w Two (2) units if mask (Black & White)
Tested by Zhejiang Light Industrial Products Inspection & Research Institute China according to GB 2626-2006. Report shown 98.4% filtration efficiency
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