About ERVs and HRVs 

ERV stands for Energy Recovery Ventilator, while HRV stands for Heat Recovery Ventilator. Both are types of ventilation systems designed to improve indoor air quality while also enhancing energy efficiency in buildings.

ERVs and HRVs work by exchanging stale indoor air with fresh outdoor air. They accomplish this while simultaneously transferring heat (HRV) or both heat and moisture (ERV) between the incoming and outgoing air streams. This process helps to maintain a comfortable indoor environment by regulating temperature and humidity levels, regardless of outdoor conditions.

ERVs and HRVs play a crucial role in reducing indoor air pollutants by continuously ventilating the indoor space and supplying it with fresh, filtered, outdoor air. By removing stale air laden with pollutants such as volatile organic compounds (VOCs), allergens, and other contaminants, these systems help to remove and dilute indoor pollutants and maintain healthy indoor air quality. Additionally, the heat or energy recovery process ensures that the incoming air is filtered and conditioned, further reducing the concentration of pollutants before they enter the living or working space. ERVs and HRVs use MERV and HEPA filters and the systems can be designed to provide additional filtration to greatly improve indoor air quality.