Banishing stale air and introducing a fresh supply is a key factor when it comes to establishing a healthy living environment. Rebecca Foster explores the myriad solutions available

Rebecca Foster

This illustration from Envirovent shows the airflow in an MEV system. The stale air is drawn into the central unit and expelled to the exterior of the house

The drive to create a super-insulated, airtight house sits at the top of many self builders’ priority lists. However, good ventilation is also important, and is a vital factor in establishing a healthy living environment. “Poor air quality can lead to a multitude of issues within the home, including a high level of humidity that leads to condensation, the growth of damp and the accumulation of unpleasant smells,” says Tim Bartlett, director at CVC Direct.

Other consequences may include the build-up of potentially harmful allergens and contaminants. “When there’s not enough ventilation, pollutants such as VOCs (volatile organic compounds), formaldehydes and radon can accumulate,” says Stefan Huber, director of Paul Heat Recovery Scotland. “These can have long-term health implications, including cancer and impaired lung function.”

Removing stale air and getting a fresh supply inside can be achieved via various means. The right solution for your dwelling will depend on an array of factors, such as the nature of the building, your budget and how straightforward the setup is to operate. So, what are your options?