Filter size:12.5*8cm/4.92''x3.14''; PM2.5 Activated Carbon Filter
Package: 20pcs+ 2 MSK
Not allowed wash please! Five layers of PM2.5 filter
Warm Prompt: Masks Replacement Filters, disposable supplies cannot be washed. Recommend replacement of 1~2 times a day
La Volupte 20pcs PM2.5 Activated Carbon Filter Replaceable Anti Haze Filter Paper for Mask B085TS4J1S