Winter Condensation on Windows in Delhi — Causes and Permanent Fixes
On December 30, 2025, Delhi woke up to what has become a winter routine: AQI at 444, categorised as Hazardous, visibility below 50 metres, PM2.5 levels at 394 µg/m³ — nearly eighty times the WHO safe guideline. A week earlier, stations at Anand Vihar recorded 644 and Wazirpur 635 as GRAP Stage 4 emergency measures […]