- 5-Layer filter insert for masks
- Perfect for protection against dust, pet dander and germs larger than 2.5microns
- It is recommended to replace the carbon filter every 3-5 days of usage
- 10-Pack provides one month supply for your fabric masks
- Using carbon filter increases the effectiveness of all fabric masks
- Remove filter from fabric masks before washing the mask
Please Note : Due to health and hygiene reasons this product cannot be returned