Gas sites can be divided into two broad categories, WH gas and K-space (regular space) gas sites. WH Gas is used in the creation of T3 Cruisers and destroyers, and is found only in WHs. K-space gas sites are used in the creation of combat boosters aka. drugs. In general, WH gas is more valuable than K-space gas by volume, but the process of harvesting the gas is very similar. For the purposes of this guide, it will be assumed that you are harvesting the K-space gas in Catch, Lime Cytoserocin.

The equipment required to huff gas is fairly cheap, with a fitted Venture currently costing roughly 12 Million ISK. This will easily be made up after just one load of gas huffing, making huffing an extremely good return on investment. Huffing can be ideal for newer players who cannot afford more expensive ratting or mining setups to be able to make the isk they need to enjoy other aspects of the game.

• The gas harvesting skillbook represents a significant initial cost, with the skillbook going for roughly 30 million isk. The dojo does have this but requires a 30 million isk donation.
• Gas huffing in Catch has one major risk not present for wormhole gas, the gas has a chance to explode on each attempt at harvesting the cloud. This means your fit must differ from a wormhole gas fit (fits below) and you may find it difficult to huff in groups.
• The loss of ventures should be expected as you go about your huffing adventures. Luckily they are cheap, so don't get too attached!

In our Catch home constellation of 9HXQ-G there exist three types of STATIC gas sites. Static means there will always be a set number of them at ANY time and the moment one despawn, another will respawn somewhere in the constellation to take its place. The 3 different statics differ greatly and each have their own benefits and tradeoffs.

Before you can gas huff you'll need to have some prerequisites as well as some basic game mechanics under your belt.

• An exploration ship. Ship fits here.
• Familiarity with exploration mechanics by using the probe scanning window and probe scanner. Click for more info.
• Being able to use external site mapping tools such as Pathfinder. Click for more info.
• You will need an Overview tab with gas clouds on it. The default eve Mining tab has it as well as the Z-S mining tab. More info here.
• Finally, a sense of how to be safe in nullsec. As a helpless mining ship you stand as an easy target so be sure to know how to use d-scan and stay alive.

Before you can start huffing gas you must find a gas site. Gas sites are similar to relic or data signatures; Gas sites must be scanned down using core scanner probes. One way you can more easily track down these sites is to ask other explorers if they've spotted any nearby or use a signature tracking website/tool such as SMT or Pathfinder. Travel to the system where the site is, scan it down and once scanned 'Right Click → Save Location' to a bookmark. What you do next depends on the site.

1. Warp to the gas site and bookmark each cloud. (Make sure you have Gas clouds in your overview/brackets)
2. Dock up your exploration ship and bring out your fitted mining frigate. Travel to the system, and warp to one of the bookmarks you made for the actual clouds.
   (This will warp you to the very center of the cloud itself which offers some protection from cloaked enemies since the cloud may decloak them.)
3. Turn on your shield hardener module.
4. Activate both gas harvesters at once and then click on the gas cloud. This is very important. It is crucial your harvester modules are on the same cycles. This is because the harvesters are on the same 'cycle tick', so each time you 'extract' any amount(s) of gas from the cloud there's only ONE chance for the cloud to explode. Unsynchronized cycles will essentially cause the cloud to explode twice as much.
5. Huff until your ore hold is full.
6. Dock up and deposit the gas and repeat until the cloud(s) has been all mined up.
7. Once both clouds have been harvested, the site itself will despawn and should respawn somewhere in the constellation. This is where you can attempt to find it yourself using your exploration ship again.