What aspect of HRVs and ERVs enhances indoor air quality?

HRVs (Heat Recovery Ventilators) and ERVs (Energy Recovery Ventilators) significantly enhance indoor air quality through their role in delivering fresh air. These systems are specifically designed to exchange indoor air with outdoor air while minimizing energy loss. By continuously introducing fresh outdoor air into the living space, they effectively dilute indoor pollutants, such as volatile organic compounds (VOCs), dust, and other airborne contaminants that can accumulate in poorly ventilated areas.

Moreover, both HRVs and ERVs provide controlled ventilation, which helps to maintain a healthy balance of indoor humidity levels and temperature, further supporting a comfortable and healthy indoor environment. This process not only reduces the concentration of contaminants but also reduces the risk of mold growth and other issues associated with stagnant air, thereby improving overall indoor air quality.

The other aspects mentioned, such as pressure increase and temperature control, while relevant to the overall function of HVAC systems, do not directly contribute to improving indoor air quality in the same way that the continuous provision of fresh air does. Effectively managing the exchange of air is the primary factor in ensuring healthier indoor environments.