Widely Compatible: The respirator filter adopts a universal bayonet connection and can be used with 6200, 6800, and 7000 series respirators. This filter cartridges cannot be used alone, please ensure that this is the model you need. Package Includes: 10 x 60921 Respirator Filters. Usage Time: The particle filter can be used for about a week. It depends on the usage environment. When you feel difficulty breathing or smell harmful odors, please replace the filter immediately. Efficient Filtration: The respirator filter cartridges is composed of activated carbon and electrostatic filter cotton, with an extremely high content of activated carbon, which can effectively filter 99.97% of organic vapors, acidic gases, benzene, chlorine, acetone, alcohols, oily and non oily particulate pollutants. Usage Scenario: The respirator filter is suitable for industrial chemicals, factories, coal mine dust prevention, laboratories and other fields, and is widely used to protect against harmful gases, dust, spray painting, polishing, welding and other industrial environments. Size: 20PCS(10Pack)60921. Unit Count: 10.00 Count. Package Dimensions? 9 x 9 x 7 inches; 6 Pounds. Item model number? JQ60921P10. Date First Available? November 7, 2023. Country of Origin? China. And we will work with you to resolve it to your satisfaction.