Cloudious 9 Hydrology 9 Vaporizer Review
Build Quality80%
Vapor Quality75%
Look & Feel84%
Ease of Use65%
67%100Overall Score

The Hydrology9 by Cloudious9 is one of the most interesting portable vaporizers that we’ve ever reviewed. That’s because the Hydrology9 has water filtration built right into the unit, along with colorful lights that can be used to create a mini lightshow. It definitely gets cool points for that, but the more important question is how well does it work. Let’s find that out now…

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Product Pros

  • Built-in water filtration
  • 5 temperature presets
  • Built-in stirring tool
  • Light show mode

Product Cons

  • Will leak if not put together correctly
  • Finicky
  • Short battery life



Cloudious 9 Hydrology 9 Vaporizer Review: Breakdown


Cloudious 9 Hydrology 9 With Water

Build Quality

Build Quality

Overall, I’d say the build quality is very good. I can’t imagine it was easy to create a vaporizer with water filtration built right into the vapor pathway. Electronics and water don’t mix well, so they had to engineer everything perfectly to make sure nothing leaks.

They were successful in doing so, but the caveat is that you have to follow the instructions very precisely if you don’t want to mess things up. That’s why I called it finicky in the pros and cons. I’ll go over this more in the ease of use section below.

Another feature that I really like on this is the built-in stirring tool. Let me explain why. This has a ceramic heating chamber that relies entirely on conduction to vaporize your herbs. This is a common setup, but a sometimes frustrating one because it leads to uneven vaporization if you don’t stop and stir the material in the middle of a session. The stirring tool on this sits inside the heating chamber while you are using it, and it can be used while you are vaping. This means you get evenly vaped herbs without having to put your session on pause. This is a great design feature.

There are also five temperature presets to choose between, and the battery lasts for about 15 sessions. That’s not as much as it seems though, because there is an automatic shutoff that ends a session after a couple of minutes.


Vapor Quality

The vapor quality is good, especially in terms of smoothness and flavor. The flavor is best on the three lowest temperature settings, and more muted as you go higher. The water filtration keeps things extremely smooth, while the stirring tool ensures you aren’t over-vaping some material while under-vaping the rest.

This is still just a portable herbal vaporizer though. It’s easy to look at this and think of hard-hitting bong rips, but that’s not what you are going to get. The vapor density is very light at lower temperatures and average on the top two settings. Still very enjoyable.

However, if you are looking for a more efficient vaporizer you may want to look at some of the convection devices such as the Utillian 721.


Cloudious 9 Hydrology 9 stirring tool


Look and Feel

The Hydrology9 has a very unique look. I’ve seen some people say it looks like a lightsaber and others say it looks like a lava lamp. I can definitely see where they are coming from, but it reminds me of some sort of power reactor that you would see in movies. I’m imagining a futuristic scenario where the main character has to hunt down a stolen reactor core and replace it before the entire world blows up.

Regardless of what you see, it seems futuristic fits the bill. As an added bonus, this has a built-in light show that looks extremely cool when filled with water and in the dark.



This is not a discreet vaporizer. It’s extremely big for a portable, and using it is a bit of a process considering all the water and trying not to spill anything.

I do not recommend using this in a public situation when you don’t want people to know what you are doing.

It will definitely draw attention especially because it makes you look more like your smoking something futuristic instead of vaping. If discretion is your end game we suggest a unit like the Zeus Smite.

Cloudious 9 Hydrology 9 disassembled


Ease of Use

Once you have everything setup, this couldn’t be easier to use. Especially when you factor in the built-in stirring tool. It’s everything else, from setup to tear down, that is relatively difficult.

Like I was describing earlier, you have to make sure you do everything exactly right if you don’t want a mess on your hand. Failing to put everything together correctly (and tightly) will cause water to run everywhere at best, and a broken vaporizer at worst.

There are also rules on how much you can turn it, and you also don’t want to accidently shake it. There are seals all through this, and it’s apparently pretty easy to screw them up. While you can technically turn it upside down with water in it, I usually fill the herb chamber first, then put the water in.



Portability is another area where the Hydrology9 doesn’t perform well. For starters, it’s just too big to carry around with you. On top of that, there is a ton of glass that you don’t want to bump and break.

When you factor in the water, you’ve got a recipe for a vaporizer that is best used from the comforts of home.

Warning: Not Compatible with ZEUS Iceborn
This vaporizer is not compatible with the ZEUS Iceborn, a revolutionary new vapor cooling system designed to produce cooler draws and bigger clouds when connected to your vaporizer. The ZEUS Iceborn adds an additional 2 points to the vapor quality score of compatible units, so we highly recommend considering a whip-compatible vaporizer to take advantage of this stellar ZEUS accessory item. All compatible vaporizers will have a compatibility notice.


The Hydrology9 is a good vaporizer that’s very enjoyable to use.

It’s by no means perfect, but it does have a lot going for it. The vapor is flavorful and smooth, largely due to the built-in water filtration and stirring tool. I even enjoy the light show mode. Things like this usually come across as gimmicky to me, but in this case it looks too cool to complain about.

In my opinion, this is a great vaporizer for people who can’t seem to have enough vaporizers. You know who you are. There are enough new features that it’s deserving of a spot in a collector’s trophy case.

I wouldn’t recommend this as a first vaporizer though, because it’s not forgiving to mistakes and it has very limited portability. If you’re looking for your first vaporizer, your money is better spent elsewhere like on the Utillian 420.

Thanks for reading our Cloudious 9 Hydrology 9 Vaporizer Review! Reminder! Don’t forget to leave a leave a comment!

About The Author

Senior Content Specialist

Dan is a writer with a massive vaporizer collection who loves video games, superhero movies, finding new music, comic and regular books and critically deconstructing those things until he wonders why he liked them in the first place. He's also a pragmatic fitness enthusiast who believes that the best actions you can take in your daily life are those that help you reach your goals, and that naps are the most lofty, but also the most noble goal one can have.

One Response

  1. Jay

    Dan, I purchased this vape 3 months ago and although I took great care with it the unit has already hit the trash can. As you use it you will find the unit clogs up and you can’t clean where the problem is. And yes regardless how hard and great care you take it leaks. Worst money I have spent.


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