The Avon Protection CFP100 Filter is a low-profile particulate filter for masks that offers: A pleated high-efficiency filter element for removing very fine dusts, fumes, viruses, and oil- and water-based mists. Exceptional filtering capacity, removing over 99.97% of particles, even those of the most penetrating particle size. Key features of this particulate filter include: Reusable design built for durability, allowing for repeated use without compromising safety. Low-profile shape that conforms comfortably to the face for minimal bulk. 10 year shelf life ensuring readiness whenever needed. Protection against a wide range of hazards, including mists, fumes, biological agents (like viruses), and even radioactive dusts. The U.S. Government has certain controls over the CFP100 Particulate Filter and prohibits the exporting, selling, transferring, transporting, or shipping of the product outside the U.S. without first obtaining approval from the U.S. government, or as authorized by U.S. law and regulations. This restriction applies whether the product is in its original form or has been incorporated into other items. This product is subject to Export Administration Regulations (EAR) with a classification of 1A004.