OK, it is not a space helmet, it is a sand blasting helmet with remote air hose that really did not work well as a sand blasting helmet, so our maintenance people gave it to us as a prop.
We added a 1950's Royal Canister Vacuum mounted on a back pack and we had a very funny retro space suit.
We do have a costume space helmet but this one definitely has possibilities in our props as some type of science fiction helmet.
If you need one, if you like the look, it is in our prop warehouse ready for your next video production or short film.