Ventilation Guide for Indian Homes | indoorair.guide

Decide when to open your windows by weighing outdoor AQI against indoor CO₂ build-up and humidity. Uses an ASHRAE 62.1 mass-balance calculation so the recommendation reflects your actual room and occupancy.

• Live outdoor AQI from CPCB-style interpolation
• ASHRAE 62.1 mass-balance formula for required ventilation
• Ten-minute ventilation rule for short, controlled flushes
• City-aware monsoon and winter guidance