Cleaning the airflow of Kanger TOPTANK

[Tyvern]

I have had my Kangertech topbox mini kit for 6 months now and despite me dropping it and such its still very neat. I have regularly changed coils and done what i should, incl. cleaning the tank to the best of my experience. Now i have been looking at the airflow and wondered and tried to clean it but i see no optimal way of getting into the nasty stuff visible...
I've seen videos and explanations for cleaning the Subtank mini/nano which i expected to be cleaned to same way.. BUT NO.. thus im now asking you guys for help.

Its the Toptank mini which followed with the Topbox mini

 

[puffon]

I've used q-tips with some fibers removed.
A small brush would work.
Usually I soak all the parts with hot water and unflavored denture tabs.
Seems to get in all the nooks and crannies.
Ultrasonic cleaners work well.
Everyone finds their own methods, that work for them.
No right or wrong way.

 

[Tyvern]

Yea okay, nice!
Maybe i should try some of those methods.

But as Kangertechs subbox mini/nano where you can open up into the airflow i wondered whether my Topbox tank also had a way into it and im just being too careful with the device

 

[Cheallaigh]

i have 7 of the tanks...
q-tips gently in the chimneys, also helps with the occasional flooding
vodka soak for a few hours and a warm water rinse