Helium is OK, but this gas that filled the Hindenburg isn't; no containers of it in your room
[DOC] [TLE] Helium Dreams - The New Yorker [PAR] Feb 29, 2016 ... A number of discrete cells, each filled with hydrogen, fit inside the rib cage, and ... 
which is achieved only inefficiently by rail, roads, and sea, and isn't achieved at ... 
Every airship engineer I talked to asked me to disregard the Hindenburg.