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The objective of a home ventilation system is to maintain a healthy living environment by supplying fresh air to your home while at the same time removing stale and polluted air.Home ventilation also helps to maintain proper humidity levels of 30 to 50 percent.The atmosphere in your house is used repeatedly, often with fresh air entering only if we open windows or doors.As we strive to build houses more and more energy efficient, we create an environment prone to indoor air quality problems, thereby, reducing the houses ability to breathe and natural air changes don't happen...