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.

Top-Airflow Tanks: Feature airflow intakes located at the top of the tank. This design is a significant innovation as it drastically reduces the chance of leakage. Air is channeled from the top, down past the coil, and up through the chimney. While it can slightly mute flavor compared to bottom airflow, it prioritizes convenience and reliability.

Durable Plastic Tanks: Utilize advanced polycarbonate or PEI plastic materials for the tank section instead of glass. These are virtually unbreakable from drops, making them ideal for clumsy users or active lifestyles. However, some plastics can be susceptible to cracking from certain "tank cracker" e-liquids (e.g., strong citrus, cinnamon).

Firing Buttons: Tactile mechanical or membrane-based switches that complete the circuit to fire the device. They are engineered for a specific feel (clicky or soft), durability (often rated for tens of thousands of presses), and aesthetic integration into the device's design, coming in various sizes, colors, and materials.

Custom Label & Logo Design: A full-service graphic design offering. The manufacturer's design team creates the brand's visual identity, including the logo, color scheme, and typography, and then applies it to all packaging, ensuring a professional and cohesive look across the entire product line.