- 4 layers of fabric
- Cotton-polyester blends outer shell
- Cotton inner layers for easy breathing
- Contoured construction to better fit on your nose and chin
- Super stretchy earloops to fit most
- Each mask comes with 4 pieces of 5-layers activated carbon PM2.5 filters
- Fabric mask is washable and reusable
- Activated carbon filters are not reusable and should be replaced every week
- Extra filters can be purchased separately
- Always free shipping on filter refills