Color:2 Masks(Black And White) Radish Stars Anti Dust Pm 2.5 Activated Carbon Filter Insert Cotton Face Masks Replaceable Face Mouth Cover Masks Mask:3 Layer Cotton,Mask Color Random Double Filtering: Mask + Filter, Insert Pm2.5 Carbon Filter From Inside The Mask, Suitable For Outdoors Activated Carbon Filter: Filter Fine Dust And Particles, Breathable And Skin Friendly, Non Woven Fabric Can Prevent Moisture Masks Can Be Washed Repeatedly, Filters Are Not Washable. Each Mask Needs To Be Used With A Filter. It Is Recommended That Each Filter Can Be Used For 7 Days Wearing Steps: 1. Stretch The Mask Away. 2. Insert The Pm2.5 Filter From The Inside Of The Mask. 3. Cover The Mouth And Nose And Hang The Rubber Bands On Your Ears. 4. Fix The Nose Clips To The Nose Shape. Any Question About The Product Please Contact Us ,Thank You !