Replaceable Face Mask Filter. These filters are NOT washable.
Should be replaced every 2-3 days if using often, 5-6 days if using occasionally.
The filter material is made of Melt-blown non-woven fabric.
- Size: 12cm (L) x 8cm (W)
- 5 Layers: anti-sticking cloth + Filter cloth + activated carbon cloth + Filter cloth + Anti-sticking cloth