1.The masks are reusable and washable
2. 100% cotton
3. They are comfortable
4. ANTI- dust
5. Durable - it will no get deformed if worn often.
6. Adjustable and soft ear loops
7. Sensitive inner layer. No dye or chemicals.
8. They come with 2 PM2.5 carbon filters
9. Adjustable bending nose piece
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