DS3 clearomizer ,3 ways of heating: bottom heating ,top heating ,both bottom and heating huge vapor ,no burnt ,no leakage! Patent NO: 2012205220133.8What' ... s new?1. Dual&Single atomizer for choosing2. Bottom heating & up heating for choosing3. Huge vapor & moderate vapor for choosingNow with ... patent design clearomizer for e cigarette DS3, 3 ways of heating all in one !