Horak/Techna 1934

Optimit Vz-33 1936

Optimit M-35/S 1937

Spanish export Vz-35 c.1937

Maska Chema-LPS (first model) 1938

Maska Chema-LPS (second model) 1938

Fatra FM-1a 1938

Fatra FM-3d

Ochranná Maska CM-3 1964