Indoor Air Quality
Geothermal Indoor Air Quality Systems AlpinePure HRV Heat Recovery Ventilator The WaterFurnace AlpinePure HRV (Heat Recovery Ventilator) is a device that moves stale contaminated air from bathrooms and kitchens from inside the home to the outdoors. At the same time it draws fresh, oxygen-rich air from outside, filters it and delivers it throughout your home.