Washable and reusable cotton fabric masks with valve. Anti-pollution PM 2.5,activated carbon filter. (if you will choose 20 filters,its order for only filters no masks)
- High Quality 100% cotton fabric - Soft elastic ear loops - multilayer lining with filter pocket - Breathable,washable and reusable - The length of widened and high elastic earband can be adjusted at will - Each mask with 02 pieces of activated carbon filter PM2.5 should be replaced once or twice a week - An upgraded version of the breathing valve reduces heat and humidity, making it more comfortable to wear.
How to use
1.Open face mask insert one activated carbon filters
2.Cover your nose and mouth with a mask
3.Adjust the buckle on both sides of the mask to the best position