Inbuilt filter 3-layer reusable fabric mask can be

NanoFit Protect X Hong Kong fashion brand Project 4 -Sling for simply to wear the mask on the neck -Invisible magnet for locking the mask -Fashionable tone on tone stitching -Water resistant pocket for better storage No additional filter needed. It is 3-layer design. The outer layer: made of nano fabric which is 99.99% antibacterial, stain resistant & liquid repellent; The middle layer: a German brand, French made reusable filter; The inner layer: 100% cotton. The filtration efficiencies is proven by Nelson Lab USA, after 125 washes, BFE 93.48%, PFE 99.04%, 99.99% antibacterial. NanoFit Protect provides enough protection for daily use. It can be hand washed/ machine washed/ washed with high temperature. It can be hang dried/ tumble dried. Do not use bleach, softener or disinfectant.