1. Soft made of cotton fabric, which is comfortable to contact with the face.
2. Insertion type filter interlayer, suitable size filter can be placed.
3. It can be washed with water. If there is a filter in the mask during washing, remove the filter in the interlayer and then clean it.
**PLEASE NOTE** These masks make Great N95 Mask Covers But, do Not block against all bacteria. This mask doesn't block the current virus. There are no claims to this feature.