NFS-7

The NFS-7 (also known as the Neurotoxin Filtration System Seven) was designed consecutively alongside the Humanus Novo Serous, a man-made infectious agent, in order to provide protection for the facility staff against the virus in its early, airborne stages in the case of emergency. Aesthetically, the gas mask shares several similiarities with a series of Soviet gas masks such as the PMG and PBF, combined with the voice membrane of the GP-6.