Activated Carbon Filter Inserts for Face Mask PM2.5

• Activated Carbon Filter Mask Insert PM2.5
• Sold by 1 piece
• Size: 3.25" x 4.75"
• Melt-blown, non-woven filter fabric
• Filter is inserted between the two layers, suitable for most mouth mask with filter slot
• Filter is not washable and should be replaced every 2-3 days.

*** Please check out our sublimation mask.