Instruction Manual Printing: The production of multi-language instruction manuals and safety guides. These are legally required in many markets and must include clear diagrams, usage instructions, warnings, and company contact information. They are often printed on low-cost, thin paper and folded inside the product box.

MTL Tanks: Mouth-To-Lung tanks are designed to replicate the tight, restrictive draw of a cigarette. They have smaller airflow holes, higher resistance coils, and a narrower chimney. The focus is on throat hit, flavor concentration, and nicotine delivery efficiency, not cloud production.

E-Liquid Bottles: Often called "unicorn bottles," these are long, slender LDPE plastic bottles with a needle-nose tip for easy, precise refilling of tanks and pods. They are a fundamental accessory for anyone who buys e-liquid in large bottles or decants their own mixes.

Sweetener-Free E-Liquids: Formulated without added sweeteners like sucralose. While slightly less sweet on the palate, they significantly extend coil life as sweeteners are a primary cause of coil gunk and caramelization. They appeal to users tired of frequently replacing coils.

Rebuildable Dripping Atomizers (RDAs): Atomizers without a tank. Users manually drip e-liquid directly onto the exposed coil and wick. RDAs are renowned for providing the most intense and pure flavor possible, as the vapor travels the shortest distance. They are for advanced users who build their own coils.