A colourless, odourless gas that is used in lighting for advertising

Let's find possible answers to "A colourless, odourless gas that is used in lighting for advertising" crossword clue. First of all, we will look for a few extra hints for this entry: A colourless, odourless gas that is used in lighting for advertising. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.