The BFL Kth-o.5ohm coil head, using Kanthal coil, is especially designed for flavor chasers. It can be used under power mode with wattage setting at 20W to 40W.
Unscrew the upper component, you'll find the atomizer head attached on the vent pipe. Remove the coil head to replace or clean.
(NOTE: Please do not wash the atomizer head with water. Simply scrub it with cotton or clean dry cloth.)