1 pcs = 1 X Mask (Include Mask filter×1) and 10 X Mask filter
Size: free size
Feature: Mask with changeable filter
Weight of the mask: about 42g/pcs
Function: prevent spittle, sand, dust, haze, bacteria, etc
The filter is recommended to be replaced every 3 days.
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Thanks for processing the cancellation so quickly!
Good communication and took care of my problem.