The LIX was a simplified version of the Ipari félálarc intended for industrial use.
The mask is the mix of other Hungarian full-face masks. It is made of rubber coated canvas and the sealing is provided by a stripe of sponge with a metal insert around the nose. The exhale valve is exactly the same as on the Népgázálarc. The head harness is a very simple 3 pointed adjustable one. The filtering cotton layers are in a metal house. It could only protect from not toxic, large particle dusts (like a P or P2 filter). It had a hooded variant with built in eyepieces which were the same as on the 34M.
- Egyéni védőruhák, védőezközök, védőfelszerelések katalógusa (Book-1968)