Evenin all. When I bought my van from a dealer, I asked about tips for over wintering the van outside on my drive. The dealer said "Its not neccesary to open the windows or door on a fine sunny day because there are floor vents built into the van in 5 different locations Which allow total circulation".....Ive checked and hes right there are 5 vents.... My wife has taken his comments to heart and refuses to let me air the van on a sunny day without a fight. So,to stop a divorce and house sale n split, should I open all on a dry sunny winters day or take the wife out for a meal n say sorry ?....