The Aspire ET-S BDC Glassomizer is an atomizer that incorporates the latest technology to improve e cigarette efficiency and durability. Like the name “Glassomizer” suggests, the Aspire ET-S Bottom Dual Coil is manufactured from metal and Pyrex glass, thus it enables users to monitor the e liquid capacity plus it is long lasting. Since it is glass made, there is no residue taste encountered after adjusting the e cigarette flavour. Also the glass material tube makes it very easy to clean compared to previous models and the tank does not corrode when exposed to acidic e liquid. The tank is capable of holding 2.4ml while it includes an added 1.8ohm dual coil head.