20Pcs 5-Layers Cycling Mask Filter Replacement Anti Dust PM2.5
Activated Carbon Filter For Bike Bicycle Face Mask Sport

Product Description

Specifications: Name Face Mask Filter  Brand BIKIGHTMaterial Activated carbon filter Weight About 5g Quantity 20pcs  
Features: (1)  Anti spray / anti haze / anti saliva / anti dust  (2)5-layer filtration, safety protection, rest assured breathing (3) Filtering effect 95%   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, & separate the gas valve.2. Take down the two air valves & take out the original filter of the mask.3. Replace with a new filter, & turn the air valve clockwise according to the valve close instruction.  Package included: 20pcs x Face Mask Filter   Note:1.   It is recommended to replace the mask filter once every 30 days & 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 & screen, the color of the item may be slightly different from the picture. Thank you for your understanding.