I've never used the Volcano but I just can't imagine anything better than the Herbalaire. I use the direct inhale and it works a million times better than the whip method. The bag system is slower than the volcano but that could be fixed with getting a faster pump. I believe that the Herbalaire is a better product than the Volcano because it gives you 2 ways to vape, instead of just one. It's also half the price.