5pcs PM2.5 Cotton Face Mask Activated Carbon Mask Washable Reuse Face Mask Elastic earloop mouth-mask is wide enough for cover nose, mouth and face, very comfortable to wear. It can protect your mouth and face from Dusty, pollen, ash, fog and haze, vehicle exhaust and passive smoking. This Dusty respirator can be used to protect you from harmful Dusty particles, PM2.5, vehicle exhaust, woodwork, pollen allergies, and fumes. Ideal for people at risk of respiratory diseases, living in or travelling to areas with high air pollution / smoke levels. The mask can be washed and reused if it is dirty The mask is made of diving cloth, with a slight smell. Take out the filter first, soak it in warm water for 15 minutes, and the smell will be eliminated slowly. The principle of filter active carbon cannot be washed Combined with the ergonomic face design, the nose beam is covered, and the aluminum sheet is fixed and antiskid, which is worn firmly and protected in place Materail:Cotton Package Content: 5PC Mouth Mask