Size: Our mask is specially designed for children 4-10 years old, you don't need to worry about size.
Easy to carry: This dust mask is foldable, so it can be carried in your bag and replaced at any time.
Applications: This dust mask filter airborne particles dust on the street, air pollution, ash, plant pollen, car exhaust.
Multi-layer design: Five layers of soft non-woven fabric are used for ultra-strong filtration, and the filtration efficiency of particles with a diameter of 0.3 micron can reach more than 95%.