However, I still have one more question:If my atomizer uses a organic cotton wick or a ppl wick, can I simply categorize it as cartomizer? And glasso and clearo only use silica wick?
No, not really.
A Cartomizer is catagorized by the form and function. The cotton is not relevant. It is and will only ever be a small metal tube with inbuilt coil and filler.
When most guides were written, clearomizers only used Silica wicks.
It was us, the Vapers, that rebuilt clearomizers with cotton instead of Silica.
The vaping equipment manufacturers started using cotton in the atomizer heads that people would exchange in their clearomizers. We mostly call these coils. It is important to understand the 'language' (nouns and verbs) of vaping is developing with the technology. The makers and the vapers understand most things, but people who are new or know very little often struggle to make sense of it all. We all understand this issue. However, people use the wrong words for innocent reasons and then the language gets messed up.
I have heard of people asking for a new cartomizer (or similar) for their tank, because they call an atomizer head something incorrect. People also ask for a new 'burner' for their tank sometimes. Nothing is burned. The coil head is the 'tool' for the atomizer.
The term 'glassomizer' doesn't exist here in the UK. The term clearomizer covers 100% of tanks that are either disposable or use factory made atomizer heads. A sub-ohm tank
is a clearomizer. We (vapers) would call a sub-ohm tank that does not have factory coils (Goblin, Merlin, Griffin) rebuildable tanks, not rebuildable clearomizers.
Sadly, although cartomizers work well and have a place in Vaping, the established big brands insist on selling them for profit and because they won't have to deal with customers making mistakes etc.
Tobacco companies LOVE cartomizers. So do some evil vaping companies that want to sell $millions but put no effort into the more effective and more-satisfying products.
Let me narrow down my question. 
Let me narrow down my question. 
