To produce large vapor clouds, focus on these key elements: Use sub-ohm coils with low resistance in your tank. These coils allow for more efficient heating and vapor production. Ensure maximum airflow in your tank. Opt for sub-ohm tanks featuring wide air channels and adjustable airflow options for optimal performance. Utilize a vape device capable of high wattage output. Higher power settings contribute to more substantial vapor production. Fill your tank with high VG (vegetable glycerine) E-Liquid. VG, a thick and flavorless liquid found in various food, medicine, and cosmetic products, excels in creating dense vapor when heated. The high VG content is crucial. More VG in your e-liquid equates to larger clouds. However, this also requires a tank with ample airflow and large wicking holes or significant cotton wick surface area to absorb the liquid quickly. This prevents the coil from dry-burning and ensures consistent vapor production. The combination of high wattage and low resistance allows for more power to pass through the coil, vaporizing more liquid and consequently producing bigger clouds.