How to fill the tank/cartridge?

Please read the vape model manual or contact us. Usually the steps are:

1. Remove tank from the unit.
2. Pull back mouthpiece.
3. Remove the plug if there is such.
4. Gently fill the tank through the hole, do not touch wick, and do not top off.
5. Re-insert the plug firmly.
6. Re-insert mouthpiece onto tank.
7. Drop tank back into the unit.
8. Make sure it is well connected/screwed or clapped (if there is not screw).