PM2.5 Breathable Outdoor Mouth Mask Unisex Face Mask Protection Mask
The mask can be used for more than 2 years, and the filter is recommended to be replaced once every 30 days. It is recommended to use it frequently or in areas with heavy haze, depending on the situation (please replace the filter in time if it is black or damaged)
The mask is made of diving cloth. Take out the filter first, soak it in warm water for 15 minutes, and the smell will be eliminated slowly. Active carbon filter cannot be washed.