Hydrology 9 Vaporizer - Liquid Filtration Vape The Hydrology 9 from the Cloudious 9 labs is a complete game changer when it comes to vaping dry herbs. They have taken everything that you thought you knew about the way portable vapes work and they threw it out of the window so that they could bring us something totally new. What they have done is blowing us and everyone else away right now with it's superior performance and excellent smoothness and flavor. The Hydrology 9 wasn't just the result of some light bulb moment of inspiration but is in fact the result of countless design changes and revisions. Each one is designed to improve the quality, consistency and performance of the Hydrology 9.