This video features a step-by-step DIY installation of an energy recovery ventilator (ERV). This installation method is intended specifically for homes WITHOUT ducted HVAC systems. This method works in apartments too! It doesn't require you to make any alterations to your home because it uses something we all already have: a window.

Most importantly, it's much easier, faster, and cheaper than other options.

In this video, I also use data to measure the efficacy of my system. I measure CO2 concentrations across a myriad of conditions, and run cross-contamination tests. My tests show the importance of ventilation, air circulation, and opening interior doors.

Why use an ERV? Well, thanks to indoor air quality research, we’re learning just how important it is to dilute the stale air in your home with fresh air - the amount of VOCs indoors can be up to 100 times higher than outdoors. Further emerging research indicates that many of these compounds can be harmful. Ventilation is the most effective way to lower their concentrations, and ERVs are the safest way to ventilate.