Half mask with interchangeable filters. In combination with the Respira Perfection filter, particulate capture is even more than 99.99%. This product does not contain any components of natural rubber latex. The Respira Compact half mask with a P3 filter was tested at the military Biological Protection Center Techonín against particularly dangerous diseases classified as Biological Safety Level 3 (BSL 3), such as Korean hemorrhagic fever, typhus, HIV, tuberculosis, and anthrax, and BSL 4 diseases, such as SARS, Lassa fever, smallpox, and Ebola. The package includes only the half mask.