ACF face mask is made by activated carbon fiber, which can absorb and filter effectively. It is the best choice for doctors, nurses, patient and also good for the staff in chemical spray dying industry. Properties: 1. Unique design Comfort, Convenience, Sanitary and Healthy 2. Effective Adsorption of poison things and waste gas It can filter efficiently toxic gas such as organic gas, volatile things, pesticide, SO2 or irritant gas, smell, bacterium and dust and so on. 3. Stop the particles smaller than 10 µm Varieties: 1. 8 -layer gauze ACF mask 2. 9 -layer gauze ACF mask