Whats the benefit of using a vaporizer for cannabis instead of smoking it? Is there even a difference between the two? Well, to your surprise there actually is.The difference on how you ignite the herb makes all the difference. When you consume cannabis or herb with a flame, it could cause irritation or damage to your respiration system. For a vaporizer, is burns the herb below the combustion level allowing for less irritation and for the herb to last longer. It also includes other health benefits compared to the traditional method for consuming cannabis/herbs.