Protective Mask-- Effectively filter toxic gas and steam to ensure smooth breathingUses and features The mask is a new, direct-designed gas mask that provides effective protection against respiratory, spectacles and facial skin during chemical, biological and radioactive contamination. Be used in different fields such as industry, agriculture, warehouse and scientific research. The comfortable and strong mask has good excellent sealing.Specification Product Name: dust-proof mask Material: plastic Color: black Band: elastic Size: one size fits adultsMask: suitable for anti flying dust, cement, grinding, interior decoration, etc.Package list: 1 * gas defense maskFriendly Tips If the weather is bad or a natural disaster occurs, the product will not deliver on time. Hope you forgive me. Please note that slight color difference should be acceptable due to the light and screen.Promise If the product has any quality problems, please feel free to contact us, we will help you solve the problem as quickly as possible.