• 510-thread: The standard screw connection for cartridges.
• Draw-activated: A sensor that fires the device when you inhale—no button.
• Airflow: How much air mixes with the vapor; tighter airflow = less vapor.
• Wattage: The power output; higher = bigger clouds, faster drain.
• Mouthpiece: The part you inhale from—look for detachable ones.
• Cartridge: The pre-filled tank you screw onto the battery.

That's the practical side of desk carry. Choose a device that fits your routine, not one that impresses your coworkers. And if you're unsure about local rules, a quick check is always worth it.