Anti-Virus Protective Mask

Models available: A: Sphere with cartridge, B: Fully equipped with +3 filter cartridge, C: Fully equipped with + filter cartridge + filter cotton 7-piece, D: Fully with + round filter cotton, full with + trapezoidal filter cotton, E: Fully equipped with +4 filter cartridge, F: Fully equipped with +1 filter cartridge, G: Fully equipped with +7 filter cartridge, H: Fully equipped with +8 filter cartridge, I: Fully equipped with + filter cartridge + filter cotton set of 15.