5G‑connected mobile respiratory units introduce a paradigm shift in acute crisis management for lung cancer patients by merging portable ventilatory support with ultra‑low‑latency, high‑bandwidth connectivity. These units integrate on‑board ventilators, non‑invasive and invasive respiratory interfaces, vital‑sign monitors, and 5G modems to enable real‑time transmission of flows, pressures, oxygen saturation, and high‑definition video to remote critical‑care hubs. During transport or in‑field deployment, intensivists and respiratory specialists can guide airway management, titrate ventilator settings, and override parameters via cloud‑based control interfaces, effectively extending ICU‑grade care into ambulances, rural clinics, and home‑based acute episodes. For lung cancer patients experiencing sudden respiratory failure due to tumour‑related airway obstruction, pleural effusion, or post‑procedure complications, such units reduce time‑to‑intervention and improve stabilization before hospital arrival. This article discusses the system architecture, 5G‑enabled tele‑ICU connectivity, safety protocols, and clinical workflows that position 5G‑connected mobile respiratory units as a scalable, technology‑driven solution for managing acute respiratory crises along the lung cancer care continuum.