Ventilation Effectiveness: A UK Home & Business Guide
You open the kitchen window because the room feels heavy. Ten minutes later, the air still feels stale, condensation sits on the glass, and now you've invited flies inside. That's the point where occupants realise ventilation isn't just about getting a window open. It's about whether fresh air reaches the part of the room where people live, work, cook, and breathe. That's where ventilation effectiveness matters. In practice, it answers a...