As of February 2026, the United Kingdom has fully transitioned into the era of the "Legal Big Puff." Following the landmark legislative shifts of 2025 that banned single-use bars, British vapers have moved toward modular, high-capacity systems that offer extreme longevity while remaining strictly TPD-compliant. Standing at the peak of this innovation is the Hayati shisha 30k, a device that has redefined the high-puff category for the modern era.