BIT OF AN AIR CON

摘要

If you suffer from allergies or asthma, or are worried about getting lung cancer or a host of other nasty diseases, then you should think twice before buying a new home. Modern homes have become much more airtight in response to tough energy regulations, which is great when it comes to conserving heat, but potentially bad news when it comes to indoor air quality. Fresh air isn't an issue in older homes as it finds its way into the building through gaps in the fabric, but airtight homes rely on dedicated ventilation systems - hence the mantra "build tight. ventilate right".