A living room of a home using an ERV to boost indoor air quaility

ERVs: What Effects Do They Have on Air Quality? 

Inhaling poor quality indoor air can be as bad as breathing outside in a polluted environment. In addition, it is harmful to the overall health of the residents who are living in this air. It can also cause structural and cosmetic damage to the overall design of the building or home. 
Poor air quality is why mechanical ventilation systems, such as ERVs, are critical and becoming increasingly popular over recent years.