- Activated Carbon PM2.5 Filters: 100% brand new and high quality.
- Five Layer Protection: 1st layer of spun-bond cloth filters micron-level dust. 2nd layer filters industrial pollutants, automobile exhaust, passive pollen allergens. 3rd layer of active carbon cloth filters micron-level dust. 4th layer offers filter density for smaller material. 5th layer of spun-bond cloth filters out all kinds of harmful substances.
- Mask Sold Separately