How to use E-liquid (Atomized Liquid):
  Remove cartridge from atomizer, look into atomizer end of cartridge and find white liquid retainer stuffed with wool. Remove the lid on bottle of e-liquid, Carefully hold dropper tip over center of cartridge, Place 3-4 drops of e-liquid  into wool of liquid retainer. The liquid retainer can be pushed toward open end of cartridge with a toothpick if needed. Replace cartridge on atomizer. Screw lid securely on-liquid bottle and place bottle away from children or pets. If you want to refill a quantity of cartridges save the rubber plugs that come with a new cartridge to plug the refills, then place in a small baggie to keep the refills from drying out. Cartridges should not be refilled after the cartridge fits loose on the atomizer . This method will save you 30-40 % over buying new cartridges every time