Description: Reusable Half Face Cover: This respirator features a reusable half face cover, providing long-lasting protection against harmful chemicals and gases in the workplace. Cotton Filter: Equipped with a cotton filter, it effectively blocks the intake of pollutants, ensuring a safe working environment for users. Versatile Use: Ideal for various occupations such as painting, spray polishing, and work safety, this respirator offers comprehensive protection. Origin: Mainland China Suitable for Work Environment: Designed for work use, this respirator provides an essential tool for maintaining safety in the workplace.Filter Cartridge Protection Objects: Box 3: Organic gases and vapors, benzene, ketone, carbon disulfide, etc.Instructions for Use: Hold the end of the band with both hands and pull the band so that the mask completely covers the nose and mouth area. Attach the fastener at the back of the neck to seal the mask and face. Pull the end of the strap again to tighten it further. Before use, check the mask to determine whether it is properly sealed. Cover the inlet side of the filter box with the palm of your hand, inhale gently, and hold for 5-10 seconds. If the mask is somewhat concave, this proves good sealing. If air leaks during the test, adjust the mask and re-tighten the elastic band to eliminate leaks, and re-check the seal until it passes. During use, when the user smells or experiences increased inspiratory resistance, the service life of the filter box has reached the end. Please replace the filter box or filter cotton immediately.Special Precautions for Users: Do not use this mask in environments with an oxygen concentration below 18%. Do not use it under the following circumstances: Unknown hazardous substances Hazardous substances present in concentrations that are immediately dangerous to life and health When you smell or taste hazardous substances Do not modify this mask. Pre-use training should be conducted by qualified persons before use. When not in use, store the mask away from contaminants and keep it sealed.