Draw-Activated Pod Kits: Operate automatically when the user takes a puff, simulating the simple, intuitive action of smoking a cigarette. There are no buttons to press, making them extremely user-friendly and ideal for beginners or users who prioritize simplicity and ease of use.

Open System Empty Pods: Refillable pods designed for open system kits. They typically consist of a plastic housing, a mouthpiece, and a rubber stopper. Users fill them with their chosen e-liquid. These are the primary consumable for open systems and are often sold in multi-packs.

Integrated Batteries: Lithium polymer (Li-Po) batteries soldered directly to the device's PCB. They are designed for specific dimensions and capacities (measured in mAh) to fit within the sleek form factor of disposables and pod systems. Their capacity and discharge rate are critical to device performance.

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.

Glass Bell Tanks: The classic tank design where the main chamber is a clear glass tube. This allows users to easily monitor e-liquid levels. The glass is resistant to flavor staining but is vulnerable to breaking if dropped, so they often come with replacement glass sections.