Designed to be a heavy hitter for those who prefer both dense clouds and top-notch flavor, the Aspire Athos tank features convenient top-fill, bottom adjustable airflow, and takes advantage of innovative tri- and penta-coil head designs. The tank can be fully disassembled for easy cleaning and maintenance and has 4ml capacity. The Athos measures 58mm tall and has a 25mm diameter, allowing it to hold 4ml of juice. The innovative Athos coils are made for flavor and power. The single-coil head A1 is rated at 0.16 ohm with a recommended power setting of 85 to 100 watts. The tri-coil is rated at 0.3 ohm with a recommended power setting of 60 to 75 watts. For maximum vapor production, there's the penta-coil head rated at 0.16 ohm with a recommended power setting of 100 to 120 watts. The Athos is a quick & clean top-fill tank. Refill your Athos tank in seconds by simply filling your E-liquid from the top and be back to vaping in no time. When using the atomizer for the first time, make sure to let the E-liquid wick until the cotton is fully saturated before firing. This should take around 2-3 minutes according to E-Liquid thickness. This will ensure your atomizer does not burn out.