Which devices can help reduce indoor radon concentrations?

Heat Recovery Ventilators (HRVs) are effective devices used to reduce indoor radon concentrations by improving ventilation in a building. They work by exchanging stale indoor air, which may contain radon, with fresh outdoor air while recovering heat from the outgoing air. This process not only helps to lower radon levels by diluting the concentration of radon gas but also maintains energy efficiency by conserving heat during the ventilation process.

HRVs are particularly beneficial in sealed or tightly constructed homes where natural ventilation may be limited. By ensuring adequate airflow, these systems can significantly mitigate radon levels, contributing to a healthier indoor environment. The ability to ventilate without excessive energy loss makes HRVs a practical solution for radon reduction.

In contrast, while electric fans might circulate air, they do not specifically address radon levels effectively without proper ventilation strategies. Thermal wraps and insulation materials can help with energy efficiency and may be useful in preventing radon ingress to some extent, but they do not actively ventilate or reduce indoor radon concentrations as HRVs do.