• Security: Professional protection against gas and dust contamination with high-density, high-efficiency activated carbon filters. Provides specific protection against dust, organic gases, and odors. • Sophisticated Design: Mesh structure with a large filter surface for more comfortable breathing. Trapezoidal and ergonomic design that does not cause neck fatigue. Standardized three-part interface for easy placement and universal combination with all masks. • Expiration Date: Shelf life of up to 3 years under normal storage conditions. Recommended to change filter cartridges every 200 hours of use. • Applications: Protection against particles and organic gases or vapors such as (nitro) benzene, aniline, carbon tetrachloride, etc. Ideal for industries such as automotive, construction, wood processing, chemicals, experiments, and agriculture. • Buy with Confidence: Includes 2 replaceable filter cartridges and 2 particulate cotton filters. Zelbuck has supplied personal protective equipment to consumers in more than 45 countries. Contact our customer service for any issues. • Product Measurements: Width: 8.8 cm, Height: 3 cm, Length: 10.8 cm, Weight: 0.001 kg.