How do disposable vapes work?

[Vapeblizz]

Disposable vapes are pre-filled, single-use vaping devices with a built-in battery and e-liquid reservoir. They are activated by inhaling, require no charging or refilling, and are discarded once the e-liquid or battery is depleted. These devices are convenient for beginners or on-the-go vaping.  https://vapeblizz.co.uk/disposable-vape.html