Airflow technology is used to match the inhalation valve and exhalation valve of a mature respirator. It can greatly reduce breathing resistance during use and ensure that it will not be difficult to breathe because of wearing a mask. Also, it helps to avoid atomization of moisture in the mask. Not recommended for children under 3 years old with low vital capacity

, Use caution for those with abnormal cardiopulmonary function. The filtration efficiency for certain non-oil-based particles is at least 95%, such as dust (mineral dust, metal dust, fiber dust, grain dust, etc.), solid fumes (such as welding fumes, cast fumes or carbon black, etc.), microorganisms (such as Pollen, spores, Mycobacterium tuberculosis ，and mold, etc.) and some smog. It is more suitable for protecting highly toxic substances (such as carcinogens, heavy metals) and radioactive substances. The activated carbon layer helps reduce organic odors.