Helium balloons are great fun to have at parties – they float in the air, they’re great for games, and you can make funny squeaky voices out of the air inside.  Contents show 1 What Is Helium Gas? 2 Is Helium Gas Flammable? 3 Is Helium Gas Explosive? 4 Is Helium Gas Dangerous At All? … Continue reading Is Helium Gas Flammable? Can It Explode?