Materials: activated carbon and non-woven melt-blown filter cotton.5 layers Protection: Comfortable and breathable. Protect you from a range of airborne contaminants.
- Protect you from a range of airborne contaminants
- 5 layers design to give you more protection.
- PM 2.5 activated carbon filters: replace it every 3 days.
- Package included: 50 pcs of PM 2.5 filters.
- Shipped from US, will arrive you within 4-8 days.