Poland heatwave drives DIY cooling hacks and AC usage guidance

Record-breaking temperatures across Poland have sparked a wave of practical advice for staying cool. Home users are urged to augment fans with frozen milk cartons or ice‑filled bottles, creating a cheap “air‑conditioner” that cools air as it passes through the frozen container. In vehicles, experts promote the “5‑minute rule”: turn off the AC five minutes before stopping while keeping the fan on, allowing the evaporator to dry and reducing mold and bacterial growth. Doctors in Szczecin warn that setting AC to the lowest temperature during extreme heat can cause a dangerous thermal shock, leading to throat and sinus problems. They recommend gradual temperature adjustments and avoiding sudden cold drafts. Together, these tips aim to improve comfort and health during the prolonged heat wave affecting much of the country.