A fluid reservoir which is attachable to an aerosol generation device for guiding a fluid to the aerosol generation device, the fluid reservoir comprising:
- a fluid container;
- and
- an interface portion affixed to the fluid container and configured to attach the fluid container to the aerosol generation device, wherein
- the interface portion includes a locking element configured to lock the fluid container to the aerosol generation device after attachment of the fluid container to the aerosol generation device, and
- the interface portion includes a weakened portion that is breakable to enable detachment of the fluid container from the aerosol generation device.