>> didn't care too much to super seal air leaks, because of potential indoor air quality issues. It is more energy efficient to open your windows each day (dur

>> didn't care too much to super seal air leaks, because of potential indoor air quality issues. It is more energy efficient to open your windows each day (during the optimum daily temperature window), than to have low-level air flow all day. The time of day that you want air flow varies with the season.