50Pcs 5-Layers Cycling Mask Filter Replacement Anti Dust PM2.5 Activated Carbon Filter for Bike Bicycle Face Mask Sport

Specifications NameFace Mask Filter BrandBIKIGHTMaterialActivated carbon filterWeightAbout 5gQuantity50pcs  Features 1  Anti spray anti haze anti saliva anti dust  2 5 layer filtration safety protection rest assured breathing 3 Filtering effect95   How to Use  1 Open the mask leak out the valve inside the filter turn the valve anticlockwise according to the open on the valve and separate the gas valve2 Take down the two air valves and take out the original filter of the mask3 Replace with a new filter and turn the air valve clockwise according to the valve close instruction  Package included  50pcs x Face Mask Filter   Note 1  It is recommended to replace the mask filter once every 30 days and once every 3 months if it is not frequently used Special period depends on the situation please replace the filter if it turns black or damaged 2 Please allow 1 3cm error due to manual measurement Please make sure you do not mind before you bid 3 Due to differences in light and screen the color of the item may be slightly different from the picture Thank you for your understanding