Polypropylene non-woven fabrics used for surgical masks and medical masks (N95) are electretized in the manufacturing process to prevent extremely small aerosols such as viruses from entering. However, this electret is lost within a few hours to a few days after opening the package due to factors such as humidity.
The Mask Charger can reapply static electricity to masks that have lost their static electricity, allowing them to be reused and their useful life to be extended.