A sub-ohm tank is a type of vaping device designed for use with low-resistance coils, typically below 1.0 ohm. These tanks allow for higher wattage settings, producing larger vapor clouds and enhancing flavor. They are popular among vapers who enjoy a more intense experience and prefer direct lung inhalation. Sub-ohm tanks often feature adjustable airflow and larger e-liquid capacities, making them convenient for extended use. They are compatible with various e-liquids, including those with higher vegetable glycerin (VG) content, which contributes to thicker vapor. Proper knowledge of battery safety is essential when using sub-ohm tanks to prevent potential hazards.