Atomizers are generally used only for dripping and can be a good way to test out new flavors without filling a fresh new carto. Simply attach to a battery, drop a few drips of liquid onto the center and pop on a drip tip, you'll get a few good vapes without any taste from fill or other impediments. 

If you are looking for the more advanced rebuildable atomizers, click the link below or choose "Rebuildables" from the side menu.