How often you take apart and clean your Volcano depends on frequency of use, and personal preference.
One often overlooked fact is that the parts dirty at different rates. For example the bottom screen of the filling chamber takes a long time to clog up, because the air is blowing through, not the vaporized plant material. Knowing this you can spread out some of your cleaning tasks to make it less of a burden.
For me, the first part to always go is the top screen of the filling chamber. I clean it once a week by itself. If it’s left dirty it seriously impairs the effectiveness of the herbal extraction.
The second part is the solid valve itself. If allowed to get too gummy, it requires a lot of pressure to take a hit, and it may not properly seal the vapors in the bag. I clean this and replace the bag with a freshie every 2 weeks.
Then every third week I’ll clean the bottom of the filling chamber.
Whenever the vacuum is in the same room, I vacuum the screen at the top where the hot air comes out of the base.
Here’s a link to photo illustrated instructions to take apart and clean your Volcano.