If your house is stuffy, odours linger, or humidity is high in fall and winter, it is likely that your house does not have adequate fresh air. If you or your children have respiratory conditions, such as asthma, bronchitis or chronic colds, getting the proper amount of fresh air is even more important.The design, construction and maintenance of a home determine the amount of exchange between indoor and outdoor air.  Since most home pollutants come primarily from indoor sources then bringing in…See More