The Heat Recovery System (HRV) will improve your home's air quality by moving stale, contaminated air from inside your home to outdoors. It draws fresh air from outside and distributes it throughout the house without loss of heat. The product will also keep your windows dry and aid those with some respiratory problems! Contact Garthside Ltd to start talking about air improvement in your Midland or Penetang home! www.penetang.com/garthside